145342746 has 24 divisors (see below), whose sum is σ = 315531840. Its totient is φ = 48351816.

The previous prime is 145342739. The next prime is 145342829. The reversal of 145342746 is 647243541.

It is a super-2 number, since 2×145342746² = 42249027629641032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145342746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1695 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (13147160).

Almost surely, 2^145342746 is an apocalyptic number.

145342746 is an abundant number, since it is smaller than the sum of its proper divisors (170189094).

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

145342746 is a wasteful number, since it uses less digits than its factorization.

145342746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15970 (or 15967 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 145342746 is about 12055.8179316046. The cubic root of 145342746 is about 525.7724031851.

The spelling of 145342746 in words is "one hundred forty-five million, three hundred forty-two thousand, seven hundred forty-six".