1497405064531 has 4 divisors (see below), whose sum is σ = 1497408390000. Its totient is φ = 1497401739064.

The previous prime is 1497405064517. The next prime is 1497405064541. The reversal of 1497405064531 is 1354605047941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1497405064531 - 2²⁵ = 1497371510099 is a prime.

It is a super-2 number, since 2×1497405064531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1497405064541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857236 + ... + 1931233.

It is an arithmetic number, because the mean of its divisors is an integer number (374352097500).

Almost surely, 2^{1497405064531} is an apocalyptic number.

1497405064531 is a deficient number, since it is larger than the sum of its proper divisors (3325469).

1497405064531 is an equidigital number, since it uses as much as digits as its factorization.

1497405064531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325468.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 1497405064531 in words is "one trillion, four hundred ninety-seven billion, four hundred five million, sixty-four thousand, five hundred thirty-one".