401251101 has 8 divisors (see below), whose sum is σ = 563159520. Its totient is φ = 253421712.

The previous prime is 401251091. The next prime is 401251111. The reversal of 401251101 is 101152104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (401251091) and next prime (401251111).

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

It is not a de Polignac number, because 401251101 - 2⁷ = 401250973 is a prime.

It is a super-2 number, since 2×401251101² = 322004892107424402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401251111) 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, 3519690 + ... + 3519803.

It is an arithmetic number, because the mean of its divisors is an integer number (70394940).

Almost surely, 2^401251101 is an apocalyptic number.

It is an amenable number.

401251101 is a deficient number, since it is larger than the sum of its proper divisors (161908419).

401251101 is a wasteful number, since it uses less digits than its factorization.

401251101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7039515.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 401251101 is about 20031.2531060840. The cubic root of 401251101 is about 737.5736828038.

The spelling of 401251101 in words is "four hundred one million, two hundred fifty-one thousand, one hundred one".