30135970 has 16 divisors (see below), whose sum is σ = 54726840. Its totient is φ = 11947264.

The previous prime is 30135967. The next prime is 30135971. The reversal of 30135970 is 7953103.

It can be written as a sum of positive squares in 4 ways, for example, as 24235929 + 5900041 = 4923^2 + 2429^2 .

It is not an unprimeable number, because it can be changed into a prime (30135971) 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, 12205 + ... + 14464.

Almost surely, 2^30135970 is an apocalyptic number.

30135970 is a deficient number, since it is larger than the sum of its proper divisors (24590870).

30135970 is a wasteful number, since it uses less digits than its factorization.

30135970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26789.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 30135970 is about 5489.6238486803. The cubic root of 30135970 is about 311.1919769477.

The spelling of 30135970 in words is "thirty million, one hundred thirty-five thousand, nine hundred seventy".