1210465513 has 4 divisors (see below), whose sum is σ = 1210776448. Its totient is φ = 1210154580.

The previous prime is 1210465511. The next prime is 1210465541. The reversal of 1210465513 is 3155640121.

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: 3155640121 = 1213 ⋅2601517.

It is a cyclic number.

It is not a de Polignac number, because 1210465513 - 2¹ = 1210465511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210465511) 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, 149553 + ... + 157438.

It is an arithmetic number, because the mean of its divisors is an integer number (302694112).

Almost surely, 2^1210465513 is an apocalyptic number.

It is an amenable number.

1210465513 is a deficient number, since it is larger than the sum of its proper divisors (310935).

1210465513 is an equidigital number, since it uses as much as digits as its factorization.

1210465513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310934.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1210465513 is about 34791.7448973172. The cubic root of 1210465513 is about 1065.7388726051.

The spelling of 1210465513 in words is "one billion, two hundred ten million, four hundred sixty-five thousand, five hundred thirteen".