45999661 has 2 divisors, whose sum is σ = 45999662. Its totient is φ = 45999660.

The previous prime is 45999557. The next prime is 45999683. The reversal of 45999661 is 16699954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41203561 + 4796100 = 6419^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 45999661 - 2⁷ = 45999533 is a prime.

It is a super-2 number, since 2×45999661² = 4231937624229842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45999061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22999830 + 22999831.

It is an arithmetic number, because the mean of its divisors is an integer number (22999831).

Almost surely, 2^45999661 is an apocalyptic number.

It is an amenable number.

45999661 is a deficient number, since it is larger than the sum of its proper divisors (1).

45999661 is an equidigital number, since it uses as much as digits as its factorization.

45999661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The square root of 45999661 is about 6782.3049916677. The cubic root of 45999661 is about 358.3039069159.

The spelling of 45999661 in words is "forty-five million, nine hundred ninety-nine thousand, six hundred sixty-one".