45711961 has 4 divisors (see below), whose sum is σ = 46486800. Its totient is φ = 44937124.

The previous prime is 45711947. The next prime is 45711973. The reversal of 45711961 is 16911754.

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: 16911754 = 2 ⋅8455877.

It is a cyclic number.

It is not a de Polignac number, because 45711961 - 2¹⁹ = 45187673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45711901) 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, 387331 + ... + 387448.

It is an arithmetic number, because the mean of its divisors is an integer number (11621700).

Almost surely, 2^45711961 is an apocalyptic number.

It is an amenable number.

45711961 is a deficient number, since it is larger than the sum of its proper divisors (774839).

45711961 is an equidigital number, since it uses as much as digits as its factorization.

45711961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774838.

The product of its digits is 7560, while the sum is 34.

The square root of 45711961 is about 6761.0621207026. The cubic root of 45711961 is about 357.5553528975. Note that the first 3 decimals are identical.

The spelling of 45711961 in words is "forty-five million, seven hundred eleven thousand, nine hundred sixty-one".