1197652461 has 4 divisors (see below), whose sum is σ = 1596869952. Its totient is φ = 798434972.

The previous prime is 1197652457. The next prime is 1197652471. The reversal of 1197652461 is 1642567911.

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 an emirpimes, since its reverse is a distinct semiprime: 1642567911 = 3 ⋅547522637.

It is a cyclic number.

It is not a de Polignac number, because 1197652461 - 2² = 1197652457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197652471) 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, 199608741 + ... + 199608746.

It is an arithmetic number, because the mean of its divisors is an integer number (399217488).

Almost surely, 2^1197652461 is an apocalyptic number.

It is an amenable number.

1197652461 is a deficient number, since it is larger than the sum of its proper divisors (399217491).

1197652461 is an equidigital number, since it uses as much as digits as its factorization.

1197652461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399217490.

The product of its digits is 90720, while the sum is 42.

The square root of 1197652461 is about 34607.1157567342. The cubic root of 1197652461 is about 1061.9651633658.

The spelling of 1197652461 in words is "one billion, one hundred ninety-seven million, six hundred fifty-two thousand, four hundred sixty-one".