45454531 has 2 divisors, whose sum is σ = 45454532. Its totient is φ = 45454530.

The previous prime is 45454523. The next prime is 45454543. The reversal of 45454531 is 13545454.

It is a happy number.

45454531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45454531 - 2³ = 45454523 is a prime.

It is a super-2 number, since 2×45454531² = 4132228776859922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45454493 and 45454502.

It is not a weakly prime, because it can be changed into another prime (45454501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22727265 + 22727266.

It is an arithmetic number, because the mean of its divisors is an integer number (22727266).

Almost surely, 2^45454531 is an apocalyptic number.

45454531 is a deficient number, since it is larger than the sum of its proper divisors (1).

45454531 is an equidigital number, since it uses as much as digits as its factorization.

45454531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 31.

The square root of 45454531 is about 6741.9975526546. The cubic root of 45454531 is about 356.8828899222.

Adding to 45454531 its reverse (13545454), we get a palindrome (58999985).

It can be divided in two parts, 4545453 and 1, that added together give a palindrome (4545454).

The spelling of 45454531 in words is "forty-five million, four hundred fifty-four thousand, five hundred thirty-one".