1401265015 has 8 divisors (see below), whose sum is σ = 1682155440. Its totient is φ = 1120587072.

The previous prime is 1401264989. The next prime is 1401265031. The reversal of 1401265015 is 5105621041.

It is a happy number.

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 1401265015 - 2⁵ = 1401264983 is a prime.

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, 38230 + ... + 65299.

It is an arithmetic number, because the mean of its divisors is an integer number (210269430).

Almost surely, 2^1401265015 is an apocalyptic number.

1401265015 is a deficient number, since it is larger than the sum of its proper divisors (280890425).

1401265015 is a wasteful number, since it uses less digits than its factorization.

1401265015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106241.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1401265015 is about 37433.4745248154. The cubic root of 1401265015 is about 1119.0257830977.

Adding to 1401265015 its reverse (5105621041), we get a palindrome (6506886056).

The spelling of 1401265015 in words is "one billion, four hundred one million, two hundred sixty-five thousand, fifteen".