151120638 has 24 divisors (see below), whose sum is σ = 329395248. Its totient is φ = 50070912.

The previous prime is 151120631. The next prime is 151120639. The reversal of 151120638 is 836021151.

151120638 is a `hidden beast` number, since 1 + 5 + 1 + 1 + 20 + 638 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151120631) 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, 22131 + ... + 28142.

It is an arithmetic number, because the mean of its divisors is an integer number (13724802).

Almost surely, 2^151120638 is an apocalyptic number.

151120638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

151120638 is an abundant number, since it is smaller than the sum of its proper divisors (178274610).

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

151120638 is a wasteful number, since it uses less digits than its factorization.

151120638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50448 (or 50445 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 151120638 is about 12293.1134380189. The cubic root of 151120638 is about 532.6491759534.

Adding to 151120638 its reverse (836021151), we get a palindrome (987141789).

The spelling of 151120638 in words is "one hundred fifty-one million, one hundred twenty thousand, six hundred thirty-eight".