145830492 has 18 divisors (see below), whose sum is σ = 368627168. Its totient is φ = 48610152.

The previous prime is 145830469. The next prime is 145830493. The reversal of 145830492 is 294038541.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4050847 = 145830492 / (1 + 4 + 5 + 8 + 3 + 0 + 4 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145830493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2025388 + ... + 2025459.

Almost surely, 2^145830492 is an apocalyptic number.

145830492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145830492 is an abundant number, since it is smaller than the sum of its proper divisors (222796676).

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

145830492 is a wasteful number, since it uses less digits than its factorization.

145830492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050857 (or 4050852 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 145830492 is about 12076.0296455416. The cubic root of 145830492 is about 526.3598813286.

The spelling of 145830492 in words is "one hundred forty-five million, eight hundred thirty thousand, four hundred ninety-two".