137628154 has 4 divisors (see below), whose sum is σ = 206442234. Its totient is φ = 68814076.

The previous prime is 137628149. The next prime is 137628167. The reversal of 137628154 is 451826731.

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., 137522529 + 105625 = 11727^2 + 325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34407037 + ... + 34407040.

Almost surely, 2^137628154 is an apocalyptic number.

137628154 is a deficient number, since it is larger than the sum of its proper divisors (68814080).

137628154 is an equidigital number, since it uses as much as digits as its factorization.

137628154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68814079.

The product of its digits is 40320, while the sum is 37.

The square root of 137628154 is about 11731.5026318030. The cubic root of 137628154 is about 516.3003604525.

The spelling of 137628154 in words is "one hundred thirty-seven million, six hundred twenty-eight thousand, one hundred fifty-four".