1361901671 has 16 divisors (see below), whose sum is σ = 1567478304. Its totient is φ = 1172112384.

The previous prime is 1361901617. The next prime is 1361901679. The reversal of 1361901671 is 1761091631.

It is a cyclic number.

It is not a de Polignac number, because 1361901671 - 2¹⁸ = 1361639527 is a prime.

It is a super-2 number, since 2×1361901671² = 3709552322945184482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361901679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5150 + ... + 52443.

It is an arithmetic number, because the mean of its divisors is an integer number (97967394).

Almost surely, 2^1361901671 is an apocalyptic number.

1361901671 is a deficient number, since it is larger than the sum of its proper divisors (205576633).

1361901671 is a wasteful number, since it uses less digits than its factorization.

1361901671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57730.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1361901671 is about 36903.9519699449. The cubic root of 1361901671 is about 1108.4478131710.

The spelling of 1361901671 in words is "one billion, three hundred sixty-one million, nine hundred one thousand, six hundred seventy-one".