45142651 has 4 divisors (see below), whose sum is σ = 47518600. Its totient is φ = 42766704.

The previous prime is 45142649. The next prime is 45142661. The reversal of 45142651 is 15624154.

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 45142651 - 2¹ = 45142649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45142631) 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, 1187946 + ... + 1187983.

It is an arithmetic number, because the mean of its divisors is an integer number (11879650).

Almost surely, 2^45142651 is an apocalyptic number.

45142651 is a deficient number, since it is larger than the sum of its proper divisors (2375949).

45142651 is a wasteful number, since it uses less digits than its factorization.

45142651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375948.

The product of its digits is 4800, while the sum is 28.

The square root of 45142651 is about 6718.8280972205. The cubic root of 45142651 is about 356.0647816924.

The spelling of 45142651 in words is "forty-five million, one hundred forty-two thousand, six hundred fifty-one".