137298958994 has 4 divisors (see below), whose sum is σ = 205948438494. Its totient is φ = 68649479496.

The previous prime is 137298958991. The next prime is 137298958999. The reversal of 137298958994 is 499859892731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499859892731 = 61 ⋅8194424471.

It can be written as a sum of positive squares in only one way, i.e., 136631511769 + 667447225 = 369637^2 + 25835^2 .

It is not an unprimeable number, because it can be changed into a prime (137298958991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34324739747 + ... + 34324739750.

Almost surely, 2^137298958994 is an apocalyptic number.

137298958994 is a deficient number, since it is larger than the sum of its proper divisors (68649479500).

137298958994 is an equidigital number, since it uses as much as digits as its factorization.

137298958994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68649479499.

The product of its digits is 352719360, while the sum is 74.

The spelling of 137298958994 in words is "one hundred thirty-seven billion, two hundred ninety-eight million, nine hundred fifty-eight thousand, nine hundred ninety-four".