151550388 has 36 divisors (see below), whose sum is σ = 417912768. Its totient is φ = 45924240.

The previous prime is 151550387. The next prime is 151550401. The reversal of 151550388 is 883055151.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151550387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190956 + ... + 191747.

It is an arithmetic number, because the mean of its divisors is an integer number (11608688).

Almost surely, 2^151550388 is an apocalyptic number.

151550388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

151550388 is an abundant number, since it is smaller than the sum of its proper divisors (266362380).

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

151550388 is a wasteful number, since it uses less digits than its factorization.

151550388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382724 (or 382719 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 151550388 is about 12310.5803275069. The cubic root of 151550388 is about 533.1536059337.

The spelling of 151550388 in words is "one hundred fifty-one million, five hundred fifty thousand, three hundred eighty-eight".