611401401 has 12 divisors (see below), whose sum is σ = 951069028. Its totient is φ = 376246944.

The previous prime is 611401397. The next prime is 611401409. The reversal of 611401401 is 104104116.

611401401 is a `hidden beast` number, since 611 + 40 + 14 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 281434176 + 329967225 = 16776^2 + 18165^2 .

It is not a de Polignac number, because 611401401 - 2² = 611401397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611401409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2612710 + ... + 2612943.

Almost surely, 2^611401401 is an apocalyptic number.

It is an amenable number.

611401401 is a deficient number, since it is larger than the sum of its proper divisors (339667627).

611401401 is a wasteful number, since it uses less digits than its factorization.

611401401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225672 (or 5225669 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 611401401 is about 24726.5323286546. The cubic root of 611401401 is about 848.7415754234.

Adding to 611401401 its reverse (104104116), we get a palindrome (715505517).

The spelling of 611401401 in words is "six hundred eleven million, four hundred one thousand, four hundred one".