151561000 has 32 divisors (see below), whose sum is σ = 354655080. Its totient is φ = 60624000.

The previous prime is 151560979. The next prime is 151561009. The reversal of 151561000 is 165151.

It can be written as a sum of positive squares in 4 ways, for example, as 71673156 + 79887844 = 8466^2 + 8938^2 .

It is not an unprimeable number, because it can be changed into a prime (151561009) 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, 74781 + ... + 76780.

Almost surely, 2^151561000 is an apocalyptic number.

151561000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151561000 is an abundant number, since it is smaller than the sum of its proper divisors (203094080).

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

151561000 is a wasteful number, since it uses less digits than its factorization.

151561000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151582 (or 151568 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 151561000 is about 12311.0113313245. The cubic root of 151561000 is about 533.1660499666.

The spelling of 151561000 in words is "one hundred fifty-one million, five hundred sixty-one thousand".