151181040 has 40 divisors (see below), whose sum is σ = 468661968. Its totient is φ = 40314880.

The previous prime is 151181027. The next prime is 151181057. The reversal of 151181040 is 40181151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 151180998 and 151181016.

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, 314721 + ... + 315200.

Almost surely, 2^151181040 is an apocalyptic number.

151181040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151181040 is an abundant number, since it is smaller than the sum of its proper divisors (317480928).

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

151181040 is a wasteful number, since it uses less digits than its factorization.

151181040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629937 (or 629931 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 151181040 is about 12295.5699339234. The cubic root of 151181040 is about 532.7201320461.

The spelling of 151181040 in words is "one hundred fifty-one million, one hundred eighty-one thousand, forty".