1597052461 has 4 divisors (see below), whose sum is σ = 1597147552. Its totient is φ = 1596957372.

The previous prime is 1597052383. The next prime is 1597052473. The reversal of 1597052461 is 1642507951.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1642507951 = 7 ⋅234643993.

It is a cyclic number.

It is not a de Polignac number, because 1597052461 - 2¹⁵ = 1597019693 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 (1597052491) 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, 14865 + ... + 58438.

It is an arithmetic number, because the mean of its divisors is an integer number (399286888).

Almost surely, 2^1597052461 is an apocalyptic number.

It is an amenable number.

1597052461 is a deficient number, since it is larger than the sum of its proper divisors (95091).

1597052461 is an equidigital number, since it uses as much as digits as its factorization.

1597052461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95090.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 1597052461 is about 39963.1387781290. The cubic root of 1597052461 is about 1168.8884324346. Note that the first 3 decimals are identical.

The spelling of 1597052461 in words is "one billion, five hundred ninety-seven million, fifty-two thousand, four hundred sixty-one".