1459749441021 has 4 divisors (see below), whose sum is σ = 1946332588032. Its totient is φ = 973166294012.

The previous prime is 1459749440987. The next prime is 1459749441041. The reversal of 1459749441021 is 1201449479541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1459749441021 - 2¹⁰ = 1459749439997 is a prime.

It is a super-2 number, since 2×1459749441021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1459749441041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243291573501 + ... + 243291573506.

It is an arithmetic number, because the mean of its divisors is an integer number (486583147008).

Almost surely, 2^{1459749441021} is an apocalyptic number.

It is an amenable number.

1459749441021 is a deficient number, since it is larger than the sum of its proper divisors (486583147011).

1459749441021 is an equidigital number, since it uses as much as digits as its factorization.

1459749441021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486583147010.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 1459749441021 in words is "one trillion, four hundred fifty-nine billion, seven hundred forty-nine million, four hundred forty-one thousand, twenty-one".