45402131 has 8 divisors (see below), whose sum is σ = 46247040. Its totient is φ = 44563392.

The previous prime is 45402103. The next prime is 45402143. The reversal of 45402131 is 13120454.

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

It is a cyclic number.

It is not a de Polignac number, because 45402131 - 2⁶ = 45402067 is a prime.

It is a super-2 number, since 2×45402131² = 4122706998682322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45402101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14885 + ... + 17673.

It is an arithmetic number, because the mean of its divisors is an integer number (5780880).

Almost surely, 2^45402131 is an apocalyptic number.

45402131 is a deficient number, since it is larger than the sum of its proper divisors (844909).

45402131 is a wasteful number, since it uses less digits than its factorization.

45402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 45402131 is about 6738.1103434123. The cubic root of 45402131 is about 356.7456989487.

Adding to 45402131 its reverse (13120454), we get a palindrome (58522585).

The spelling of 45402131 in words is "forty-five million, four hundred two thousand, one hundred thirty-one".