151311131 has 4 divisors (see below), whose sum is σ = 154166112. Its totient is φ = 148456152.

The previous prime is 151311119. The next prime is 151311143. The reversal of 151311131 is 131113151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131113151 = 13 ⋅10085627.

It is an interprime number because it is at equal distance from previous prime (151311119) and next prime (151311143).

It is a cyclic number.

It is not a de Polignac number, because 151311131 - 2¹⁸ = 151048987 is a prime.

It is a super-2 number, since 2×151311131² = 45790116728998322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151311151) 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, 1427411 + ... + 1427516.

It is an arithmetic number, because the mean of its divisors is an integer number (38541528).

Almost surely, 2^151311131 is an apocalyptic number.

151311131 is a deficient number, since it is larger than the sum of its proper divisors (2854981).

151311131 is an equidigital number, since it uses as much as digits as its factorization.

151311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854980.

The product of its digits is 45, while the sum is 17.

The square root of 151311131 is about 12300.8589537479. The cubic root of 151311131 is about 532.8728897951.

Adding to 151311131 its reverse (131113151), we get a palindrome (282424282).

The spelling of 151311131 in words is "one hundred fifty-one million, three hundred eleven thousand, one hundred thirty-one".