151121610 has 48 divisors (see below), whose sum is σ = 406472040. Its totient is φ = 38908800.

The previous prime is 151121609. The next prime is 151121617. The reversal of 151121610 is 16121151.

It is a happy number.

151121610 is a `hidden beast` number, since 1 + 51 + 1 + 2 + 1 + 610 = 666.

151121610 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 101545929 + 49575681 = 10077^2 + 7041^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (151121617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26341 + ... + 31560.

Almost surely, 2^151121610 is an apocalyptic number.

151121610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151121610 is an abundant number, since it is smaller than the sum of its proper divisors (255350430).

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

151121610 is a wasteful number, since it uses less digits than its factorization.

151121610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57943 (or 57940 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 151121610 is about 12293.1529722850. The cubic root of 151121610 is about 532.6503179414.

Adding to 151121610 its reverse (16121151), we get a palindrome (167242761).

The spelling of 151121610 in words is "one hundred fifty-one million, one hundred twenty-one thousand, six hundred ten".