1401996131 has 4 divisors (see below), whose sum is σ = 1402499112. Its totient is φ = 1401493152.

The previous prime is 1401996091. The next prime is 1401996181. The reversal of 1401996131 is 1316991041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401996131 is a prime.

It is a super-2 number, since 2×1401996131² = 3931186302677938322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401996091 and 1401996100.

It is not an unprimeable number, because it can be changed into a prime (1401996181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247286 + ... + 252891.

It is an arithmetic number, because the mean of its divisors is an integer number (350624778).

Almost surely, 2^1401996131 is an apocalyptic number.

1401996131 is a deficient number, since it is larger than the sum of its proper divisors (502981).

1401996131 is an equidigital number, since it uses as much as digits as its factorization.

1401996131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502980.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 1401996131 is about 37443.2387888655. The cubic root of 1401996131 is about 1119.2203680853.

The spelling of 1401996131 in words is "one billion, four hundred one million, nine hundred ninety-six thousand, one hundred thirty-one".