401653051 has 2 divisors, whose sum is σ = 401653052. Its totient is φ = 401653050.

The previous prime is 401653039. The next prime is 401653099. The reversal of 401653051 is 150356104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401653051 - 2²⁷ = 267435323 is a prime.

It is a super-2 number, since 2×401653051² = 322650346755217202, which contains 22 as substring.

It is equal to p_21419611 and since 401653051 and 21419611 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (401653751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200826525 + 200826526.

It is an arithmetic number, because the mean of its divisors is an integer number (200826526).

Almost surely, 2^401653051 is an apocalyptic number.

401653051 is a deficient number, since it is larger than the sum of its proper divisors (1).

401653051 is an equidigital number, since it uses as much as digits as its factorization.

401653051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 401653051 is about 20041.2836664721. The cubic root of 401653051 is about 737.8198867407.

The spelling of 401653051 in words is "four hundred one million, six hundred fifty-three thousand, fifty-one".