126973942 has 4 divisors (see below), whose sum is σ = 190460916. Its totient is φ = 63486970.

The previous prime is 126973939. The next prime is 126973949. The reversal of 126973942 is 249379621.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×126973942² = 32244763894038728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126973949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31743484 + ... + 31743487.

It is an arithmetic number, because the mean of its divisors is an integer number (47615229).

Almost surely, 2^126973942 is an apocalyptic number.

126973942 is a deficient number, since it is larger than the sum of its proper divisors (63486974).

126973942 is an equidigital number, since it uses as much as digits as its factorization.

126973942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63486973.

The product of its digits is 163296, while the sum is 43.

The square root of 126973942 is about 11268.2714734781. The cubic root of 126973942 is about 502.6181889104.

The spelling of 126973942 in words is "one hundred twenty-six million, nine hundred seventy-three thousand, nine hundred forty-two".