1401265379 has 8 divisors (see below), whose sum is σ = 1477244928. Its totient is φ = 1327209480.

The previous prime is 1401265373. The next prime is 1401265387. The reversal of 1401265379 is 9735621041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401265379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401265373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479417 + ... + 482330.

It is an arithmetic number, because the mean of its divisors is an integer number (184655616).

Almost surely, 2^1401265379 is an apocalyptic number.

1401265379 is a deficient number, since it is larger than the sum of its proper divisors (75979549).

1401265379 is an equidigital number, since it uses as much as digits as its factorization.

1401265379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961825.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1401265379 is about 37433.4793867735. The cubic root of 1401265379 is about 1119.0258799924.

The spelling of 1401265379 in words is "one billion, four hundred one million, two hundred sixty-five thousand, three hundred seventy-nine".