151561072 has 20 divisors (see below), whose sum is σ = 316238440. Its totient is φ = 69951168.

The previous prime is 151561063. The next prime is 151561087. The reversal of 151561072 is 270165151.

It is a self number, because there is not a number n which added to its sum of digits gives 151561072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364122 + ... + 364537.

It is an arithmetic number, because the mean of its divisors is an integer number (15811922).

Almost surely, 2^151561072 is an apocalyptic number.

It is an amenable number.

151561072 is an abundant number, since it is smaller than the sum of its proper divisors (164677368).

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

151561072 is a wasteful number, since it uses less digits than its factorization.

151561072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728680 (or 728674 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 151561072 is about 12311.0142555356. The cubic root of 151561072 is about 533.1661343945.

The spelling of 151561072 in words is "one hundred fifty-one million, five hundred sixty-one thousand, seventy-two".