1401452015021 has 8 divisors (see below), whose sum is σ = 1409475691584. Its totient is φ = 1393444565920.

The previous prime is 1401452015003. The next prime is 1401452015023. The reversal of 1401452015021 is 1205102541041.

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 a de Polignac number, because none of the positive numbers 2^k-1401452015021 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 (1401452015023) 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, 3883625 + ... + 4229118.

It is an arithmetic number, because the mean of its divisors is an integer number (176184461448).

Almost surely, 2^{1401452015021} is an apocalyptic number.

It is an amenable number.

1401452015021 is a deficient number, since it is larger than the sum of its proper divisors (8023676563).

1401452015021 is an equidigital number, since it uses as much as digits as its factorization.

1401452015021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8113731.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 1401452015021 its reverse (1205102541041), we get a palindrome (2606554556062).

The spelling of 1401452015021 in words is "one trillion, four hundred one billion, four hundred fifty-two million, fifteen thousand, twenty-one".