126551949 has 8 divisors (see below), whose sum is σ = 168794880. Its totient is φ = 84338496.

The previous prime is 126551939. The next prime is 126551959. The reversal of 126551949 is 949155621.

It is an interprime number because it is at equal distance from previous prime (126551939) and next prime (126551959).

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

It is not a de Polignac number, because 126551949 - 2⁸ = 126551693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126551949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126551939) 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, 6244 + ... + 17090.

It is an arithmetic number, because the mean of its divisors is an integer number (21099360).

Almost surely, 2^126551949 is an apocalyptic number.

It is an amenable number.

126551949 is a deficient number, since it is larger than the sum of its proper divisors (42242931).

126551949 is a wasteful number, since it uses less digits than its factorization.

126551949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14739.

The product of its digits is 97200, while the sum is 42.

The square root of 126551949 is about 11249.5310568930. The cubic root of 126551949 is about 502.0607601995.

The spelling of 126551949 in words is "one hundred twenty-six million, five hundred fifty-one thousand, nine hundred forty-nine".