361121455 has 4 divisors (see below), whose sum is σ = 433345752. Its totient is φ = 288897160.

The previous prime is 361121419. The next prime is 361121461. The reversal of 361121455 is 554121163.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 361121455 - 2²⁷ = 226903727 is a prime.

It is a super-2 number, since 2×361121455² = 260817410522634050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36112141 + ... + 36112150.

It is an arithmetic number, because the mean of its divisors is an integer number (108336438).

Almost surely, 2^361121455 is an apocalyptic number.

361121455 is a deficient number, since it is larger than the sum of its proper divisors (72224297).

361121455 is an equidigital number, since it uses as much as digits as its factorization.

361121455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72224296.

The product of its digits is 3600, while the sum is 28.

The square root of 361121455 is about 19003.1959154243. The cubic root of 361121455 is about 712.1165795883.

The spelling of 361121455 in words is "three hundred sixty-one million, one hundred twenty-one thousand, four hundred fifty-five".