151121240 has 32 divisors (see below), whose sum is σ = 340385760. Its totient is φ = 60384000.

The previous prime is 151121239. The next prime is 151121251. The reversal of 151121240 is 42121151.

151121240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57965 + ... + 60515.

It is an arithmetic number, because the mean of its divisors is an integer number (10637055).

Almost surely, 2^151121240 is an apocalyptic number.

151121240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151121240 is an abundant number, since it is smaller than the sum of its proper divisors (189264520).

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

151121240 is a wasteful number, since it uses less digits than its factorization.

151121240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043 (or 4039 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 151121240 is about 12293.1379232481. The cubic root of 151121240 is about 532.6498832346.

Adding to 151121240 its reverse (42121151), we get a palindrome (193242391).

The spelling of 151121240 in words is "one hundred fifty-one million, one hundred twenty-one thousand, two hundred forty".