137272742 has 4 divisors (see below), whose sum is σ = 205909116. Its totient is φ = 68636370.

The previous prime is 137272711. The next prime is 137272769. The reversal of 137272742 is 247272731.

137272742 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247272731 = 1429 ⋅173039.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34318184 + ... + 34318187.

It is an arithmetic number, because the mean of its divisors is an integer number (51477279).

Almost surely, 2^137272742 is an apocalyptic number.

137272742 is a deficient number, since it is larger than the sum of its proper divisors (68636374).

137272742 is an equidigital number, since it uses as much as digits as its factorization.

137272742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68636373.

The product of its digits is 32928, while the sum is 35.

The square root of 137272742 is about 11716.3450785644. The cubic root of 137272742 is about 515.8555446642.

The spelling of 137272742 in words is "one hundred thirty-seven million, two hundred seventy-two thousand, seven hundred forty-two".