151610138 has 4 divisors (see below), whose sum is σ = 227415210. Its totient is φ = 75805068.

The previous prime is 151610111. The next prime is 151610141. The reversal of 151610138 is 831016151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 151609969 + 169 = 12313^2 + 13^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37902533 + ... + 37902536.

Almost surely, 2^151610138 is an apocalyptic number.

151610138 is a deficient number, since it is larger than the sum of its proper divisors (75805072).

151610138 is an equidigital number, since it uses as much as digits as its factorization.

151610138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75805071.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 151610138 is about 12313.0068626636. The cubic root of 151610138 is about 533.2236634743.

Adding to 151610138 its reverse (831016151), we get a palindrome (982626289).

The spelling of 151610138 in words is "one hundred fifty-one million, six hundred ten thousand, one hundred thirty-eight".