158949425 has 6 divisors (see below), whose sum is σ = 197097318. Its totient is φ = 127159520.

The previous prime is 158949391. The next prime is 158949433. The reversal of 158949425 is 524949851.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25847056 + 133102369 = 5084^2 + 11537^2 .

It is not a de Polignac number, because 158949425 - 2⁶ = 158949361 is a prime.

It is a super-3 number, since 3×158949425³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 158949425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3178964 + ... + 3179013.

It is an arithmetic number, because the mean of its divisors is an integer number (32849553).

Almost surely, 2^158949425 is an apocalyptic number.

It is an amenable number.

158949425 is a deficient number, since it is larger than the sum of its proper divisors (38147893).

158949425 is an equidigital number, since it uses as much as digits as its factorization.

158949425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6357987 (or 6357982 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The square root of 158949425 is about 12607.5146242231. The cubic root of 158949425 is about 541.6927051257.

The spelling of 158949425 in words is "one hundred fifty-eight million, nine hundred forty-nine thousand, four hundred twenty-five".