1401664045 has 8 divisors (see below), whose sum is σ = 1755127296. Its totient is φ = 1072577616.

The previous prime is 1401664031. The next prime is 1401664063. The reversal of 1401664045 is 5404661041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401664045 - 2⁵ = 1401664013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401663998 and 1401664016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6094077 + ... + 6094306.

It is an arithmetic number, because the mean of its divisors is an integer number (219390912).

Almost surely, 2^1401664045 is an apocalyptic number.

It is an amenable number.

1401664045 is a deficient number, since it is larger than the sum of its proper divisors (353463251).

1401664045 is a wasteful number, since it uses less digits than its factorization.

1401664045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12188411.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1401664045 is about 37438.8040006622. The cubic root of 1401664045 is about 1119.1319924813.

The spelling of 1401664045 in words is "one billion, four hundred one million, six hundred sixty-four thousand, forty-five".