45210142 has 4 divisors (see below), whose sum is σ = 67815216. Its totient is φ = 22605070.

The previous prime is 45210127. The next prime is 45210149. The reversal of 45210142 is 24101254.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45210149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11302534 + ... + 11302537.

It is an arithmetic number, because the mean of its divisors is an integer number (16953804).

Almost surely, 2^45210142 is an apocalyptic number.

45210142 is a deficient number, since it is larger than the sum of its proper divisors (22605074).

45210142 is a wasteful number, since it uses less digits than its factorization.

45210142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22605073.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 45210142 is about 6723.8487490425. The cubic root of 45210142 is about 356.2421394798.

Adding to 45210142 its reverse (24101254), we get a palindrome (69311396).

The spelling of 45210142 in words is "forty-five million, two hundred ten thousand, one hundred forty-two".