151212140 has 24 divisors (see below), whose sum is σ = 319149600. Its totient is φ = 60179328.

The previous prime is 151212091. The next prime is 151212151. The reversal of 151212140 is 41212151.

It is a super-2 number, since 2×151212140² = 45730222566759200, which contains 22 as substring.

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, 15017 + ... + 22976.

It is an arithmetic number, because the mean of its divisors is an integer number (13297900).

Almost surely, 2^151212140 is an apocalyptic number.

151212140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151212140 is an abundant number, since it is smaller than the sum of its proper divisors (167937460).

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

151212140 is a wasteful number, since it uses less digits than its factorization.

151212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38201 (or 38199 counting only the distinct ones).

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

The square root of 151212140 is about 12296.8345520300. The cubic root of 151212140 is about 532.7566588050.

Adding to 151212140 its reverse (41212151), we get a palindrome (192424291).

The spelling of 151212140 in words is "one hundred fifty-one million, two hundred twelve thousand, one hundred forty".