361651131 has 12 divisors (see below), whose sum is σ = 523273608. Its totient is φ = 240690624.

The previous prime is 361651123. The next prime is 361651139. The reversal of 361651131 is 131156163.

361651131 is a `hidden beast` number, since 3 + 6 + 1 + 651 + 1 + 3 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (361651123) and next prime (361651139).

It is not a de Polignac number, because 361651131 - 2³ = 361651123 is a prime.

It is a super-2 number, since 2×361651131² = 261583081107158322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 361651095 and 361651104.

It is not an unprimeable number, because it can be changed into a prime (361651139) 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, 28545 + ... + 39218.

It is an arithmetic number, because the mean of its divisors is an integer number (43606134).

Almost surely, 2^361651131 is an apocalyptic number.

361651131 is a deficient number, since it is larger than the sum of its proper divisors (161622477).

361651131 is a wasteful number, since it uses less digits than its factorization.

361651131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68362 (or 68359 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 361651131 is about 19017.1273067201. The cubic root of 361651131 is about 712.4645758935.

The spelling of 361651131 in words is "three hundred sixty-one million, six hundred fifty-one thousand, one hundred thirty-one".