308937145 has 24 divisors (see below), whose sum is σ = 418916160. Its totient is φ = 216901440.

The previous prime is 308937121. The next prime is 308937179. The reversal of 308937145 is 541739803.

It is not a de Polignac number, because 308937145 - 2⁵ = 308937113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 308937098 and 308937107.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42916 + ... + 49594.

It is an arithmetic number, because the mean of its divisors is an integer number (17454840).

Almost surely, 2^308937145 is an apocalyptic number.

It is an amenable number.

308937145 is a deficient number, since it is larger than the sum of its proper divisors (109979015).

308937145 is a wasteful number, since it uses less digits than its factorization.

308937145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753 (or 6724 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 308937145 is about 17576.6078923096. The cubic root of 308937145 is about 676.0155868924.

The spelling of 308937145 in words is "three hundred eight million, nine hundred thirty-seven thousand, one hundred forty-five".