401553115 has 8 divisors (see below), whose sum is σ = 490031280. Its totient is φ = 315797472.

The previous prime is 401553079. The next prime is 401553127. The reversal of 401553115 is 511355104.

It is a happy number.

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 401553115 - 2²¹ = 399455963 is a prime.

It is a super-2 number, since 2×401553115² = 322489808332406450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401553115.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680304 + ... + 680893.

It is an arithmetic number, because the mean of its divisors is an integer number (61253910).

Almost surely, 2^401553115 is an apocalyptic number.

401553115 is a deficient number, since it is larger than the sum of its proper divisors (88478165).

401553115 is a wasteful number, since it uses less digits than its factorization.

401553115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361261.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 401553115 is about 20038.7902578973. The cubic root of 401553115 is about 737.7586889115.

The spelling of 401553115 in words is "four hundred one million, five hundred fifty-three thousand, one hundred fifteen".