151219640 has 64 divisors (see below), whose sum is σ = 399742560. Its totient is φ = 50757120.

The previous prime is 151219637. The next prime is 151219681. The reversal of 151219640 is 46912151.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7499 + ... + 18938.

Almost surely, 2^151219640 is an apocalyptic number.

151219640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151219640 is an abundant number, since it is smaller than the sum of its proper divisors (248522920).

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

151219640 is a wasteful number, since it uses less digits than its factorization.

151219640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26472 (or 26468 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 151219640 is about 12297.1395047792. The cubic root of 151219640 is about 532.7654667593.

The spelling of 151219640 in words is "one hundred fifty-one million, two hundred nineteen thousand, six hundred forty".