1224871957 has 8 divisors (see below), whose sum is σ = 1244069792. Its totient is φ = 1205701200.

The previous prime is 1224871951. The next prime is 1224871961. The reversal of 1224871957 is 7591784221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1224871957 - 2⁷ = 1224871829 is a prime.

It is a super-2 number, since 2×1224871957² = 3000622622090019698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224871951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96607 + ... + 108547.

It is an arithmetic number, because the mean of its divisors is an integer number (155508724).

Almost surely, 2^1224871957 is an apocalyptic number.

It is an amenable number.

1224871957 is a deficient number, since it is larger than the sum of its proper divisors (19197835).

1224871957 is a wasteful number, since it uses less digits than its factorization.

1224871957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13539.

The product of its digits is 282240, while the sum is 46.

The square root of 1224871957 is about 34998.1707664844. The cubic root of 1224871957 is about 1069.9501991554.

It can be divided in two parts, 1224 and 871957, that added together give a triangular number (873181 = T₁₃₂₁).

The spelling of 1224871957 in words is "one billion, two hundred twenty-four million, eight hundred seventy-one thousand, nine hundred fifty-seven".