1373042145 has 16 divisors (see below), whose sum is σ = 2326095360. Its totient is φ = 689213184.

The previous prime is 1373042131. The next prime is 1373042147. The reversal of 1373042145 is 5412403731.

It is a happy number.

It is not a de Polignac number, because 1373042145 - 2⁵ = 1373042113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1373042147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2691985 + ... + 2692494.

It is an arithmetic number, because the mean of its divisors is an integer number (145380960).

Almost surely, 2^1373042145 is an apocalyptic number.

1373042145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373042145 is a deficient number, since it is larger than the sum of its proper divisors (953053215).

1373042145 is a wasteful number, since it uses less digits than its factorization.

1373042145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384504.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1373042145 is about 37054.5833197460. The cubic root of 1373042145 is about 1111.4620090626.

Adding to 1373042145 its reverse (5412403731), we get a palindrome (6785445876).

The spelling of 1373042145 in words is "one billion, three hundred seventy-three million, forty-two thousand, one hundred forty-five".