30151252 has 48 divisors (see below), whose sum is σ = 59351040. Its totient is φ = 13334112.

The previous prime is 30151249. The next prime is 30151259. The reversal of 30151252 is 25215103.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30151259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81973 + ... + 82339.

It is an arithmetic number, because the mean of its divisors is an integer number (1236480).

Almost surely, 2^30151252 is an apocalyptic number.

It is an amenable number.

30151252 is a deficient number, since it is larger than the sum of its proper divisors (29199788).

30151252 is a wasteful number, since it uses less digits than its factorization.

30151252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 30151252 is about 5491.0155709122. The cubic root of 30151252 is about 311.2445700466.

Adding to 30151252 its reverse (25215103), we get a palindrome (55366355).

It can be divided in two parts, 30151 and 252, that added together give a palindrome (30403).

The spelling of 30151252 in words is "thirty million, one hundred fifty-one thousand, two hundred fifty-two".