45012542 has 4 divisors (see below), whose sum is σ = 67518816. Its totient is φ = 22506270.

The previous prime is 45012523. The next prime is 45012581. The reversal of 45012542 is 24521054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24521054 = 2 ⋅12260527.

It is a super-2 number, since 2×45012542² = 4052257874603528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11253134 + ... + 11253137.

It is an arithmetic number, because the mean of its divisors is an integer number (16879704).

Almost surely, 2^45012542 is an apocalyptic number.

45012542 is a deficient number, since it is larger than the sum of its proper divisors (22506274).

45012542 is a wasteful number, since it uses less digits than its factorization.

45012542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22506273.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45012542 is about 6709.1386928577. The cubic root of 45012542 is about 355.7223722357.

Adding to 45012542 its reverse (24521054), we get a palindrome (69533596).

It can be divided in two parts, 45012 and 542, that added together give a palindrome (45554).

The spelling of 45012542 in words is "forty-five million, twelve thousand, five hundred forty-two".