1254122513 has 12 divisors (see below), whose sum is σ = 1459866672. Its totient is φ = 1074233160.

The previous prime is 1254122459. The next prime is 1254122533. The reversal of 1254122513 is 3152214521.

It is not a de Polignac number, because 1254122513 - 2⁸ = 1254122257 is a prime.

It is a super-2 number, since 2×1254122513² = 3145646555226870338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254122533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71858 + ... + 87588.

It is an arithmetic number, because the mean of its divisors is an integer number (121655556).

Almost surely, 2^1254122513 is an apocalyptic number.

It is an amenable number.

1254122513 is a deficient number, since it is larger than the sum of its proper divisors (205744159).

1254122513 is a wasteful number, since it uses less digits than its factorization.

1254122513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17372 (or 17365 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1254122513 is about 35413.5922069479. The cubic root of 1254122513 is about 1078.4002702032.

The spelling of 1254122513 in words is "one billion, two hundred fifty-four million, one hundred twenty-two thousand, five hundred thirteen".