45456142 has 16 divisors (see below), whose sum is σ = 71331840. Its totient is φ = 21683992.

The previous prime is 45456133. The next prime is 45456143. The reversal of 45456142 is 24165454.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45456143) 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, 21003 + ... + 23065.

It is an arithmetic number, because the mean of its divisors is an integer number (4458240).

Almost surely, 2^45456142 is an apocalyptic number.

45456142 is a deficient number, since it is larger than the sum of its proper divisors (25875698).

45456142 is a wasteful number, since it uses less digits than its factorization.

45456142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567.

The product of its digits is 19200, while the sum is 31.

The square root of 45456142 is about 6742.1170265726. The cubic root of 45456142 is about 356.8871060882.

The spelling of 45456142 in words is "forty-five million, four hundred fifty-six thousand, one hundred forty-two".