45042261 has 8 divisors (see below), whose sum is σ = 65516064. Its totient is φ = 27298320.

The previous prime is 45042259. The next prime is 45042269. The reversal of 45042261 is 16224054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45042261 - 2¹ = 45042259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45042269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682426 + ... + 682491.

It is an arithmetic number, because the mean of its divisors is an integer number (8189508).

Almost surely, 2^45042261 is an apocalyptic number.

It is an amenable number.

45042261 is a deficient number, since it is larger than the sum of its proper divisors (20473803).

45042261 is a wasteful number, since it uses less digits than its factorization.

45042261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364931.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 45042261 is about 6711.3531422508. The cubic root of 45042261 is about 355.8006421796.

The spelling of 45042261 in words is "forty-five million, forty-two thousand, two hundred sixty-one".