151316121 has 16 divisors (see below), whose sum is σ = 221257728. Its totient is φ = 91222800.

The previous prime is 151316119. The next prime is 151316141. The reversal of 151316121 is 121613151.

It is a happy number.

It is not a de Polignac number, because 151316121 - 2¹ = 151316119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151316111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5701 + ... + 18306.

It is an arithmetic number, because the mean of its divisors is an integer number (13828608).

Almost surely, 2^151316121 is an apocalyptic number.

151316121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151316121 is a deficient number, since it is larger than the sum of its proper divisors (69941607).

151316121 is a wasteful number, since it uses less digits than its factorization.

151316121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24212.

The product of its digits is 180, while the sum is 21.

The square root of 151316121 is about 12301.0617834397. The cubic root of 151316121 is about 532.8787474970.

Adding to 151316121 its reverse (121613151), we get a palindrome (272929272).

The spelling of 151316121 in words is "one hundred fifty-one million, three hundred sixteen thousand, one hundred twenty-one".