151878140 has 24 divisors (see below), whose sum is σ = 319814880. Its totient is φ = 60585408.

The previous prime is 151878127. The next prime is 151878143. The reversal of 151878140 is 41878151.

It is a self number, because there is not a number n which added to its sum of digits gives 151878140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151878143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 17639.

It is an arithmetic number, because the mean of its divisors is an integer number (13325620).

Almost surely, 2^151878140 is an apocalyptic number.

151878140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151878140 is an abundant number, since it is smaller than the sum of its proper divisors (167936740).

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

151878140 is a wasteful number, since it uses less digits than its factorization.

151878140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20741 (or 20739 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 35.

The square root of 151878140 is about 12323.8849394174. The cubic root of 151878140 is about 533.5376725683.

The spelling of 151878140 in words is "one hundred fifty-one million, eight hundred seventy-eight thousand, one hundred forty".