45211651 has 2 divisors, whose sum is σ = 45211652. Its totient is φ = 45211650.

The previous prime is 45211633. The next prime is 45211679. The reversal of 45211651 is 15611254.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45211651 - 2¹⁵ = 45178883 is a prime.

It is a super-2 number, since 2×45211651² = 4088186772291602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45211631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22605825 + 22605826.

It is an arithmetic number, because the mean of its divisors is an integer number (22605826).

Almost surely, 2^45211651 is an apocalyptic number.

45211651 is a deficient number, since it is larger than the sum of its proper divisors (1).

45211651 is an equidigital number, since it uses as much as digits as its factorization.

45211651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 45211651 is about 6723.9609606243. The cubic root of 45211651 is about 356.2461029224.

The spelling of 45211651 in words is "forty-five million, two hundred eleven thousand, six hundred fifty-one".