152131770 has 120 divisors (see below), whose sum is σ = 475975764. Its totient is φ = 34763904.

The previous prime is 152131769. The next prime is 152131877. The reversal of 152131770 is 77131251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 144793089 + 7338681 = 12033^2 + 2709^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 37774 + ... + 41606.

Almost surely, 2^152131770 is an apocalyptic number.

152131770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 152131770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237987882).

152131770 is an abundant number, since it is smaller than the sum of its proper divisors (323843994).

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

152131770 is a wasteful number, since it uses less digits than its factorization.

152131770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866 (or 3850 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 152131770 is about 12334.1708274209. The cubic root of 152131770 is about 533.8345024322.

The spelling of 152131770 in words is "one hundred fifty-two million, one hundred thirty-one thousand, seven hundred seventy".