46421561 has 2 divisors, whose sum is σ = 46421562. Its totient is φ = 46421560.

The previous prime is 46421533. The next prime is 46421591. The reversal of 46421561 is 16512464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40246336 + 6175225 = 6344^2 + 2485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46421561 is a prime.

It is a super-2 number, since 2×46421561² = 4309922651353442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (46421591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23210780 + 23210781.

It is an arithmetic number, because the mean of its divisors is an integer number (23210781).

Almost surely, 2^46421561 is an apocalyptic number.

It is an amenable number.

46421561 is a deficient number, since it is larger than the sum of its proper divisors (1).

46421561 is an equidigital number, since it uses as much as digits as its factorization.

46421561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 46421561 is about 6813.3369944543. The cubic root of 46421561 is about 359.3960062428.

The spelling of 46421561 in words is "forty-six million, four hundred twenty-one thousand, five hundred sixty-one".