150751861 has 4 divisors (see below), whose sum is σ = 162348172. Its totient is φ = 139155552.

The previous prime is 150751847. The next prime is 150751873. The reversal of 150751861 is 168157051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39765636 + 110986225 = 6306^2 + 10535^2 .

It is a cyclic number.

It is not a de Polignac number, because 150751861 - 2²⁵ = 117197429 is a prime.

It is a super-2 number, since 2×150751861² = 45452247189926642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150751891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5798136 + ... + 5798161.

It is an arithmetic number, because the mean of its divisors is an integer number (40587043).

Almost surely, 2^150751861 is an apocalyptic number.

It is an amenable number.

150751861 is a deficient number, since it is larger than the sum of its proper divisors (11596311).

150751861 is a wasteful number, since it uses less digits than its factorization.

150751861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11596310.

The product of its (nonzero) digits is 8400, while the sum is 34.

The square root of 150751861 is about 12278.1049433534. The cubic root of 150751861 is about 532.2155516091.

The spelling of 150751861 in words is "one hundred fifty million, seven hundred fifty-one thousand, eight hundred sixty-one".