151939420 has 24 divisors (see below), whose sum is σ = 322174944. Its totient is φ = 60184896.

The previous prime is 151939397. The next prime is 151939423. The reversal of 151939420 is 24939151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151939423) 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 7 ways as a sum of consecutive naturals, for example, 34819 + ... + 38938.

It is an arithmetic number, because the mean of its divisors is an integer number (13423956).

Almost surely, 2^151939420 is an apocalyptic number.

151939420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151939420 is an abundant number, since it is smaller than the sum of its proper divisors (170235524).

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

151939420 is a wasteful number, since it uses less digits than its factorization.

151939420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73869 (or 73867 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 151939420 is about 12326.3709176708. The cubic root of 151939420 is about 533.6094204232.

The spelling of 151939420 in words is "one hundred fifty-one million, nine hundred thirty-nine thousand, four hundred twenty".