361152661 has 4 divisors (see below), whose sum is σ = 362664000. Its totient is φ = 359641324.

The previous prime is 361152637. The next prime is 361152683. The reversal of 361152661 is 166251163.

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 361152661 - 2¹⁷ = 361021589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361152611) 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, 755311 + ... + 755788.

It is an arithmetic number, because the mean of its divisors is an integer number (90666000).

Almost surely, 2^361152661 is an apocalyptic number.

It is an amenable number.

361152661 is a deficient number, since it is larger than the sum of its proper divisors (1511339).

361152661 is a wasteful number, since it uses less digits than its factorization.

361152661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511338.

The product of its digits is 6480, while the sum is 31.

The square root of 361152661 is about 19004.0169701040. The cubic root of 361152661 is about 712.1370913115.

The spelling of 361152661 in words is "three hundred sixty-one million, one hundred fifty-two thousand, six hundred sixty-one".