145557692 has 24 divisors (see below), whose sum is σ = 292346880. Its totient is φ = 62118000.

The previous prime is 145557691. The next prime is 145557697. The reversal of 145557692 is 296755541.

It is a happy number.

145557692 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145557691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184 + ... + 17567.

It is an arithmetic number, because the mean of its divisors is an integer number (12181120).

Almost surely, 2^145557692 is an apocalyptic number.

It is an amenable number.

145557692 is an abundant number, since it is smaller than the sum of its proper divisors (146789188).

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

145557692 is a wasteful number, since it uses less digits than its factorization.

145557692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22001 (or 21999 counting only the distinct ones).

The product of its digits is 378000, while the sum is 44.

The square root of 145557692 is about 12064.7292551470. The cubic root of 145557692 is about 526.0314621169.

The spelling of 145557692 in words is "one hundred forty-five million, five hundred fifty-seven thousand, six hundred ninety-two".