145260690 has 32 divisors (see below), whose sum is σ = 353833920. Its totient is φ = 38157504.

The previous prime is 145260679. The next prime is 145260721. The reversal of 145260690 is 96062541.

It is a super-2 number, since 2×145260690² = 42201336118552200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34125 + ... + 38144.

It is an arithmetic number, because the mean of its divisors is an integer number (11057310).

Almost surely, 2^145260690 is an apocalyptic number.

145260690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145260690 is an abundant number, since it is smaller than the sum of its proper divisors (208573230).

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

145260690 is a wasteful number, since it uses less digits than its factorization.

145260690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72346.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 145260690 is about 12052.4142809646. The cubic root of 145260690 is about 525.6734396361.

The spelling of 145260690 in words is "one hundred forty-five million, two hundred sixty thousand, six hundred ninety".