1401992915 has 8 divisors (see below), whose sum is σ = 1684129968. Its totient is φ = 1120435360.

The previous prime is 1401992903. The next prime is 1401992929. The reversal of 1401992915 is 5192991041.

It is a happy number.

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

It is not a de Polignac number, because 1401992915 - 2¹⁴ = 1401976531 is a prime.

It is a Duffinian 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, 139532 + ... + 149241.

It is an arithmetic number, because the mean of its divisors is an integer number (210516246).

Almost surely, 2^1401992915 is an apocalyptic number.

1401992915 is a deficient number, since it is larger than the sum of its proper divisors (282137053).

1401992915 is an equidigital number, since it uses as much as digits as its factorization.

1401992915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289749.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 1401992915 is about 37443.1958438379. The cubic root of 1401992915 is about 1119.2195123019.

The spelling of 1401992915 in words is "one billion, four hundred one million, nine hundred ninety-two thousand, nine hundred fifteen".