30253136 has 40 divisors (see below), whose sum is σ = 60115944. Its totient is φ = 14745600.

The previous prime is 30253127. The next prime is 30253163. The reversal of 30253136 is 63135203.

It can be written as a sum of positive squares in 4 ways, for example, as 7595536 + 22657600 = 2756^2 + 4760^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156656 + ... + 156848.

Almost surely, 2^30253136 is an apocalyptic number.

It is an amenable number.

30253136 is a deficient number, since it is larger than the sum of its proper divisors (29862808).

30253136 is a wasteful number, since it uses less digits than its factorization.

30253136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 30253136 is about 5500.2850835207. The cubic root of 30253136 is about 311.5947510902.

Adding to 30253136 its reverse (63135203), we get a palindrome (93388339).

It can be divided in two parts, 3025 and 3136, that multiplied together give a square (9486400 = 3080²).

The spelling of 30253136 in words is "thirty million, two hundred fifty-three thousand, one hundred thirty-six".