151591388 has 12 divisors (see below), whose sum is σ = 285691560. Its totient is φ = 69965232.

The previous prime is 151591387. The next prime is 151591399. The reversal of 151591388 is 883195151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151591387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457558 + ... + 1457661.

It is an arithmetic number, because the mean of its divisors is an integer number (23807630).

Almost surely, 2^151591388 is an apocalyptic number.

It is an amenable number.

151591388 is a deficient number, since it is larger than the sum of its proper divisors (134100172).

151591388 is a wasteful number, since it uses less digits than its factorization.

151591388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915236 (or 2915234 counting only the distinct ones).

The product of its digits is 43200, while the sum is 41.

The square root of 151591388 is about 12312.2454491453. The cubic root of 151591388 is about 533.2016808725.

The spelling of 151591388 in words is "one hundred fifty-one million, five hundred ninety-one thousand, three hundred eighty-eight".