45921929 has 2 divisors, whose sum is σ = 45921930. Its totient is φ = 45921928.

The previous prime is 45921907. The next prime is 45921937. The reversal of 45921929 is 92912954.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45873529 + 48400 = 6773^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45921929 is a prime.

It is not a weakly prime, because it can be changed into another prime (45921229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22960964 + 22960965.

It is an arithmetic number, because the mean of its divisors is an integer number (22960965).

Almost surely, 2^45921929 is an apocalyptic number.

It is an amenable number.

45921929 is a deficient number, since it is larger than the sum of its proper divisors (1).

45921929 is an equidigital number, since it uses as much as digits as its factorization.

45921929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 45921929 is about 6776.5720685314. The cubic root of 45921929 is about 358.1019678747.

Subtracting 45921929 from its reverse (92912954), we obtain a square (46991025 = 6855²).

The spelling of 45921929 in words is "forty-five million, nine hundred twenty-one thousand, nine hundred twenty-nine".