145690992 has 60 divisors (see below), whose sum is σ = 408593640. Its totient is φ = 48461184.

The previous prime is 145690907. The next prime is 145691033. The reversal of 145690992 is 299096541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101383 + ... + 102809.

It is an arithmetic number, because the mean of its divisors is an integer number (6809894).

Almost surely, 2^145690992 is an apocalyptic number.

145690992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145690992 is an abundant number, since it is smaller than the sum of its proper divisors (262902648).

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

145690992 is a wasteful number, since it uses less digits than its factorization.

145690992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2141 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 145690992 is about 12070.2523585880. The cubic root of 145690992 is about 526.1919909052.

The spelling of 145690992 in words is "one hundred forty-five million, six hundred ninety thousand, nine hundred ninety-two".