361557601 has 4 divisors (see below), whose sum is σ = 364936752. Its totient is φ = 358178452.

The previous prime is 361557577. The next prime is 361557613. The reversal of 361557601 is 106755163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 361557601 - 2⁵ = 361557569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361557671) 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, 1689415 + ... + 1689628.

It is an arithmetic number, because the mean of its divisors is an integer number (91234188).

Almost surely, 2^361557601 is an apocalyptic number.

It is an amenable number.

361557601 is a deficient number, since it is larger than the sum of its proper divisors (3379151).

361557601 is a wasteful number, since it uses less digits than its factorization.

361557601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379150.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 361557601 is about 19014.6680486408. The cubic root of 361557601 is about 712.4031515433.

It can be divided in two parts, 3615 and 57601, that added together give a palindrome (61216).

The spelling of 361557601 in words is "three hundred sixty-one million, five hundred fifty-seven thousand, six hundred one".