1230697515 has 16 divisors (see below), whose sum is σ = 2022336288. Its totient is φ = 638631936.

The previous prime is 1230697513. The next prime is 1230697537. The reversal of 1230697515 is 5157960321.

It is not a de Polignac number, because 1230697515 - 2¹ = 1230697513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230697511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1108182 + ... + 1109291.

It is an arithmetic number, because the mean of its divisors is an integer number (126396018).

Almost surely, 2^1230697515 is an apocalyptic number.

1230697515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230697515 is a deficient number, since it is larger than the sum of its proper divisors (791638773).

1230697515 is a wasteful number, since it uses less digits than its factorization.

1230697515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217518.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 1230697515 is about 35081.2986504206. The cubic root of 1230697515 is about 1071.6437643065.

The spelling of 1230697515 in words is "one billion, two hundred thirty million, six hundred ninety-seven thousand, five hundred fifteen".