157229652 has 24 divisors (see below), whose sum is σ = 370300896. Its totient is φ = 51919648.

The previous prime is 157229647. The next prime is 157229689. The reversal of 157229652 is 256922751.

It is a super-2 number, since 2×157229652² = 49442326936082208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157229652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59943 + ... + 62510.

It is an arithmetic number, because the mean of its divisors is an integer number (15429204).

Almost surely, 2^157229652 is an apocalyptic number.

157229652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157229652 is an abundant number, since it is smaller than the sum of its proper divisors (213071244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157229652 is a wasteful number, since it uses less digits than its factorization.

157229652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122567 (or 122565 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 157229652 is about 12539.1248498450. The cubic root of 157229652 is about 539.7319794771.

The spelling of 157229652 in words is "one hundred fifty-seven million, two hundred twenty-nine thousand, six hundred fifty-two".