126979652 has 6 divisors (see below), whose sum is σ = 222214398. Its totient is φ = 63489824.

The previous prime is 126979651. The next prime is 126979663. The reversal of 126979652 is 256979621.

It can be written as a sum of positive squares in only one way, i.e., 123965956 + 3013696 = 11134^2 + 1736^2 .

It is a super-2 number, since 2×126979652² = 32247664044082208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126979597 and 126979606.

It is not an unprimeable number, because it can be changed into a prime (126979651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15872453 + ... + 15872460.

It is an arithmetic number, because the mean of its divisors is an integer number (37035733).

Almost surely, 2^126979652 is an apocalyptic number.

It is an amenable number.

126979652 is a deficient number, since it is larger than the sum of its proper divisors (95234746).

126979652 is a wasteful number, since it uses less digits than its factorization.

126979652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31744917 (or 31744915 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 126979652 is about 11268.5248369074. The cubic root of 126979652 is about 502.6257230201.

The spelling of 126979652 in words is "one hundred twenty-six million, nine hundred seventy-nine thousand, six hundred fifty-two".