126155915 has 16 divisors (see below), whose sum is σ = 159664800. Its totient is φ = 95427072.

The previous prime is 126155891. The next prime is 126155941. The reversal of 126155915 is 519551621.

It is a cyclic number.

It is not a de Polignac number, because 126155915 - 2¹⁶ = 126090379 is a prime.

It is a super-3 number, since 3×126155915³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66419 + ... + 68291.

It is an arithmetic number, because the mean of its divisors is an integer number (9979050).

Almost surely, 2^126155915 is an apocalyptic number.

126155915 is a deficient number, since it is larger than the sum of its proper divisors (33508885).

126155915 is a wasteful number, since it uses less digits than its factorization.

126155915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606.

The product of its digits is 13500, while the sum is 35.

The square root of 126155915 is about 11231.9150192654. The cubic root of 126155915 is about 501.5364935387.

The spelling of 126155915 in words is "one hundred twenty-six million, one hundred fifty-five thousand, nine hundred fifteen".