30945141 has 6 divisors (see below), whose sum is σ = 44698550. Its totient is φ = 20630088.

The previous prime is 30945133. The next prime is 30945157. The reversal of 30945141 is 14154903.

It can be written as a sum of positive squares in only one way, i.e., 29746116 + 1199025 = 5454^2 + 1095^2 .

It is not a de Polignac number, because 30945141 - 2³ = 30945133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30945121) 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, 1719166 + ... + 1719183.

Almost surely, 2^30945141 is an apocalyptic number.

It is an amenable number.

30945141 is a deficient number, since it is larger than the sum of its proper divisors (13753409).

30945141 is a wasteful number, since it uses less digits than its factorization.

30945141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438355 (or 3438352 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 30945141 is about 5562.8356977355. The cubic root of 30945141 is about 313.9526515216.

The spelling of 30945141 in words is "thirty million, nine hundred forty-five thousand, one hundred forty-one".