401651533 has 8 divisors (see below), whose sum is σ = 410098752. Its totient is φ = 393276576.

The previous prime is 401651513. The next prime is 401651557. The reversal of 401651533 is 335156104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401651533 - 2²⁵ = 368097101 is a prime.

It is a super-2 number, since 2×401651533² = 322647907922500178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401651513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6760 + ... + 29137.

It is an arithmetic number, because the mean of its divisors is an integer number (51262344).

Almost surely, 2^401651533 is an apocalyptic number.

It is an amenable number.

401651533 is a deficient number, since it is larger than the sum of its proper divisors (8447219).

401651533 is a wasteful number, since it uses less digits than its factorization.

401651533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36131.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 401651533 is about 20041.2457946107. The cubic root of 401651533 is about 737.8189572386.

The spelling of 401651533 in words is "four hundred one million, six hundred fifty-one thousand, five hundred thirty-three".