1401701861 has 4 divisors (see below), whose sum is σ = 1601944992. Its totient is φ = 1201458732.

The previous prime is 1401701827. The next prime is 1401701869. The reversal of 1401701861 is 1681071041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1401701861 - 2¹⁴ = 1401685477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401701869) 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, 100121555 + ... + 100121568.

It is an arithmetic number, because the mean of its divisors is an integer number (400486248).

Almost surely, 2^1401701861 is an apocalyptic number.

It is an amenable number.

1401701861 is a deficient number, since it is larger than the sum of its proper divisors (200243131).

1401701861 is an equidigital number, since it uses as much as digits as its factorization.

1401701861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200243130.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 1401701861 is about 37439.3090347565. The cubic root of 1401701861 is about 1119.1420568794.

The spelling of 1401701861 in words is "one billion, four hundred one million, seven hundred one thousand, eight hundred sixty-one".