49103145 has 96 divisors (see below), whose sum is σ = 109549440. Its totient is φ = 20684160.

The previous prime is 49103141. The next prime is 49103147. The reversal of 49103145 is 54130194.

It is not a de Polignac number, because 49103145 - 2² = 49103141 is a prime.

It is a super-2 number, since 2×49103145² = 4822237697782050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49103141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 85710 + ... + 86280.

It is an arithmetic number, because the mean of its divisors is an integer number (1141140).

Almost surely, 2^49103145 is an apocalyptic number.

49103145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49103145 is an abundant number, since it is smaller than the sum of its proper divisors (60446295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49103145 is a wasteful number, since it uses less digits than its factorization.

49103145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 49103145 is about 7007.3636269285. The cubic root of 49103145 is about 366.1871523358.

The spelling of 49103145 in words is "forty-nine million, one hundred three thousand, one hundred forty-five".