151215764 has 18 divisors (see below), whose sum is σ = 307832490. Its totient is φ = 64806672.

The previous prime is 151215763. The next prime is 151215769. The reversal of 151215764 is 467512151.

It can be written as a sum of positive squares in only one way, i.e., 151093264 + 122500 = 12292^2 + 350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 151215764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151215763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385559 + ... + 385950.

It is an arithmetic number, because the mean of its divisors is an integer number (17101805).

Almost surely, 2^151215764 is an apocalyptic number.

151215764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

151215764 is an abundant number, since it is smaller than the sum of its proper divisors (156616726).

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

151215764 is a wasteful number, since it uses less digits than its factorization.

151215764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771527 (or 771518 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 151215764 is about 12296.9819061427. The cubic root of 151215764 is about 532.7609148449.

The spelling of 151215764 in words is "one hundred fifty-one million, two hundred fifteen thousand, seven hundred sixty-four".