145861392 has 20 divisors (see below), whose sum is σ = 376808720. Its totient is φ = 48620448.

The previous prime is 145861369. The next prime is 145861399. The reversal of 145861392 is 293168541.

It is a self number, because there is not a number n which added to its sum of digits gives 145861392.

It is not an unprimeable number, because it can be changed into a prime (145861399) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1519342 + ... + 1519437.

It is an arithmetic number, because the mean of its divisors is an integer number (18840436).

Almost surely, 2^145861392 is an apocalyptic number.

145861392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145861392 is an abundant number, since it is smaller than the sum of its proper divisors (230947328).

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

145861392 is a wasteful number, since it uses less digits than its factorization.

145861392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038790 (or 3038784 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 145861392 is about 12077.3089717867. The cubic root of 145861392 is about 526.3970554739.

The spelling of 145861392 in words is "one hundred forty-five million, eight hundred sixty-one thousand, three hundred ninety-two".