150637861 has 12 divisors (see below), whose sum is σ = 171290700. Its totient is φ = 132218240.

The previous prime is 150637859. The next prime is 150637873. The reversal of 150637861 is 168736051.

150637861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24502500 + 126135361 = 4950^2 + 11231^2 .

It is not a de Polignac number, because 150637861 - 2¹ = 150637859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150637861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150637811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17956 + ... + 24973.

It is an arithmetic number, because the mean of its divisors is an integer number (14274225).

Almost surely, 2^150637861 is an apocalyptic number.

150637861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

150637861 is a deficient number, since it is larger than the sum of its proper divisors (20652839).

150637861 is a wasteful number, since it uses less digits than its factorization.

150637861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42980 (or 42969 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 150637861 is about 12273.4616551322. The cubic root of 150637861 is about 532.0813622805.

The spelling of 150637861 in words is "one hundred fifty million, six hundred thirty-seven thousand, eight hundred sixty-one".