15382961 has 4 divisors (see below), whose sum is σ = 16781424. Its totient is φ = 13984500.

The previous prime is 15382957. The next prime is 15382973. The reversal of 15382961 is 16928351.

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 15382961 - 2² = 15382957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15382901) 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, 699215 + ... + 699236.

It is an arithmetic number, because the mean of its divisors is an integer number (4195356).

Almost surely, 2^15382961 is an apocalyptic number.

15382961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15382961 is a deficient number, since it is larger than the sum of its proper divisors (1398463).

15382961 is a wasteful number, since it uses less digits than its factorization.

15382961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398462.

The product of its digits is 12960, while the sum is 35.

The square root of 15382961 is about 3922.1118036078. Note that the first 3 decimals coincide. The cubic root of 15382961 is about 248.7024019430.

The spelling of 15382961 in words is "fifteen million, three hundred eighty-two thousand, nine hundred sixty-one".