361138520 has 32 divisors (see below), whose sum is σ = 813103920. Its totient is φ = 144359040.

The previous prime is 361138501. The next prime is 361138559. The reversal of 361138520 is 25831163.

It is a super-3 number, since 3×361138520³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110510 + ... + 113730.

Almost surely, 2^361138520 is an apocalyptic number.

It is an amenable number.

361138520 is an abundant number, since it is smaller than the sum of its proper divisors (451965400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361138520 is a wasteful number, since it uses less digits than its factorization.

361138520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6031 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 361138520 is about 19003.6449135422. The cubic root of 361138520 is about 712.1277965698.

Adding to 361138520 its reverse (25831163), we get a palindrome (386969683).

The spelling of 361138520 in words is "three hundred sixty-one million, one hundred thirty-eight thousand, five hundred twenty".