361536121 has 4 divisors (see below), whose sum is σ = 361781392. Its totient is φ = 361290852.

The previous prime is 361536101. The next prime is 361536137. The reversal of 361536121 is 121635163.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121635163 = 13 ⋅9356551.

It is a cyclic number.

It is not a de Polignac number, because 361536121 - 2²¹ = 359438969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361536121.

It is not an unprimeable number, because it can be changed into a prime (361536101) 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, 120411 + ... + 123376.

It is an arithmetic number, because the mean of its divisors is an integer number (90445348).

Almost surely, 2^361536121 is an apocalyptic number.

It is an amenable number.

361536121 is a deficient number, since it is larger than the sum of its proper divisors (245271).

361536121 is a wasteful number, since it uses less digits than its factorization.

361536121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245270.

The product of its digits is 3240, while the sum is 28.

The square root of 361536121 is about 19014.1032131416. The cubic root of 361536121 is about 712.3890433969.

The spelling of 361536121 in words is "three hundred sixty-one million, five hundred thirty-six thousand, one hundred twenty-one".