45681967 has 4 divisors (see below), whose sum is σ = 45708376. Its totient is φ = 45655560.

The previous prime is 45681959. The next prime is 45681971. The reversal of 45681967 is 76918654.

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

It is a cyclic number.

It is not a de Polignac number, because 45681967 - 2³ = 45681959 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 (45681917) 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, 10413 + ... + 14134.

It is an arithmetic number, because the mean of its divisors is an integer number (11427094).

Almost surely, 2^45681967 is an apocalyptic number.

45681967 is a deficient number, since it is larger than the sum of its proper divisors (26409).

45681967 is a wasteful number, since it uses less digits than its factorization.

45681967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26408.

The product of its digits is 362880, while the sum is 46.

The square root of 45681967 is about 6758.8436141103. The cubic root of 45681967 is about 357.4771322194.

The spelling of 45681967 in words is "forty-five million, six hundred eighty-one thousand, nine hundred sixty-seven".