151987988 has 12 divisors (see below), whose sum is σ = 266070420. Its totient is φ = 75967872.

The previous prime is 151987919. The next prime is 151987991. The reversal of 151987988 is 889789151.

It can be written as a sum of positive squares in 2 ways, for example, as 114875524 + 37112464 = 10718^2 + 6092^2 .

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, 13148 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (22172535).

Almost surely, 2^151987988 is an apocalyptic number.

It is an amenable number.

151987988 is a deficient number, since it is larger than the sum of its proper divisors (114082432).

151987988 is a wasteful number, since it uses less digits than its factorization.

151987988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13066 (or 13064 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 56.

The square root of 151987988 is about 12328.3408453855. The cubic root of 151987988 is about 533.6662711106. Note that the first 3 decimals are identical.

The spelling of 151987988 in words is "one hundred fifty-one million, nine hundred eighty-seven thousand, nine hundred eighty-eight".