126531955 has 8 divisors (see below), whose sum is σ = 165641904. Its totient is φ = 92023200.

The previous prime is 126531953. The next prime is 126531973. The reversal of 126531955 is 559135621.

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

It is not a de Polignac number, because 126531955 - 2¹ = 126531953 is a prime.

It is a super-2 number, since 2×126531955² = 32020671272244050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126531953) 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, 1150236 + ... + 1150345.

It is an arithmetic number, because the mean of its divisors is an integer number (20705238).

Almost surely, 2^126531955 is an apocalyptic number.

126531955 is a deficient number, since it is larger than the sum of its proper divisors (39109949).

126531955 is a wasteful number, since it uses less digits than its factorization.

126531955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300597.

The product of its digits is 40500, while the sum is 37.

The square root of 126531955 is about 11248.6423625254. The cubic root of 126531955 is about 502.0343185376.

The spelling of 126531955 in words is "one hundred twenty-six million, five hundred thirty-one thousand, nine hundred fifty-five".