45432131 has 2 divisors, whose sum is σ = 45432132. Its totient is φ = 45432130.

The previous prime is 45432103. The next prime is 45432137. The reversal of 45432131 is 13123454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45432131 - 2¹⁰ = 45431107 is a prime.

It is a super-2 number, since 2×45432131² = 4128157054402322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45432097 and 45432106.

It is not a weakly prime, because it can be changed into another prime (45432137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22716065 + 22716066.

It is an arithmetic number, because the mean of its divisors is an integer number (22716066).

Almost surely, 2^45432131 is an apocalyptic number.

45432131 is a deficient number, since it is larger than the sum of its proper divisors (1).

45432131 is an equidigital number, since it uses as much as digits as its factorization.

45432131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 45432131 is about 6740.3361192154. The cubic root of 45432131 is about 356.8242563082.

Adding to 45432131 its reverse (13123454), we get a palindrome (58555585).

The spelling of 45432131 in words is "forty-five million, four hundred thirty-two thousand, one hundred thirty-one".