30926145 has 32 divisors (see below), whose sum is σ = 54680832. Its totient is φ = 14845952.

The previous prime is 30926143. The next prime is 30926149. The reversal of 30926145 is 54162903.

It is a cyclic number.

It is not a de Polignac number, because 30926145 - 2¹ = 30926143 is a prime.

It is a super-2 number, since 2×30926145² = 1912852889122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30926143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3229 + ... + 8501.

It is an arithmetic number, because the mean of its divisors is an integer number (1708776).

Almost surely, 2^30926145 is an apocalyptic number.

It is an amenable number.

30926145 is a deficient number, since it is larger than the sum of its proper divisors (23754687).

30926145 is a wasteful number, since it uses less digits than its factorization.

30926145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30926145 is about 5561.1280330523. The cubic root of 30926145 is about 313.8883973272. Note that the first 3 decimals are identical.

The spelling of 30926145 in words is "thirty million, nine hundred twenty-six thousand, one hundred forty-five".