151550231 has 16 divisors (see below), whose sum is σ = 177417216. Its totient is φ = 126754656.

The previous prime is 151550219. The next prime is 151550239. The reversal of 151550231 is 132055151.

It is a happy number.

It is not a de Polignac number, because 151550231 - 2⁶ = 151550167 is a prime.

It is a super-2 number, since 2×151550231² = 45934945032306722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151550197 and 151550206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151550239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182840 + ... + 183666.

It is an arithmetic number, because the mean of its divisors is an integer number (11088576).

Almost surely, 2^151550231 is an apocalyptic number.

151550231 is a deficient number, since it is larger than the sum of its proper divisors (25866985).

151550231 is an equidigital number, since it uses as much as digits as its factorization.

151550231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 151550231 is about 12310.5739508765. The cubic root of 151550231 is about 533.1534218252.

The spelling of 151550231 in words is "one hundred fifty-one million, five hundred fifty thousand, two hundred thirty-one".