1401122399 has 8 divisors (see below), whose sum is σ = 1415755920. Its totient is φ = 1386504000.

The previous prime is 1401122357. The next prime is 1401122413. The reversal of 1401122399 is 9932211041.

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 1401122399 - 2²⁰ = 1400073823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401122299) 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, 354464 + ... + 358394.

It is an arithmetic number, because the mean of its divisors is an integer number (176969490).

Almost surely, 2^1401122399 is an apocalyptic number.

1401122399 is a deficient number, since it is larger than the sum of its proper divisors (14633521).

1401122399 is a wasteful number, since it uses less digits than its factorization.

1401122399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1401122399 is about 37431.5695503141. The cubic root of 1401122399 is about 1118.9878182603.

The spelling of 1401122399 in words is "one billion, four hundred one million, one hundred twenty-two thousand, three hundred ninety-nine".