137451442 has 4 divisors (see below), whose sum is σ = 206177166. Its totient is φ = 68725720.

The previous prime is 137451437. The next prime is 137451449. The reversal of 137451442 is 244154731.

137451442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 126765081 + 10686361 = 11259^2 + 3269^2 .

It is not an unprimeable number, because it can be changed into a prime (137451449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34362859 + ... + 34362862.

Almost surely, 2^137451442 is an apocalyptic number.

137451442 is a deficient number, since it is larger than the sum of its proper divisors (68725724).

137451442 is an equidigital number, since it uses as much as digits as its factorization.

137451442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68725723.

The product of its digits is 13440, while the sum is 31.

The square root of 137451442 is about 11723.9686966488. The cubic root of 137451442 is about 516.0792924438.

The spelling of 137451442 in words is "one hundred thirty-seven million, four hundred fifty-one thousand, four hundred forty-two".