137420902 has 8 divisors (see below), whose sum is σ = 206610912. Its totient is φ = 68550600.

The previous prime is 137420893. The next prime is 137420947. The reversal of 137420902 is 209024731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78849 + ... + 80572.

It is an arithmetic number, because the mean of its divisors is an integer number (25826364).

Almost surely, 2^137420902 is an apocalyptic number.

137420902 is a deficient number, since it is larger than the sum of its proper divisors (69190010).

137420902 is a wasteful number, since it uses less digits than its factorization.

137420902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159854.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 137420902 is about 11722.6661643160. Note that the first 3 decimals coincide. The cubic root of 137420902 is about 516.0410674804.

The spelling of 137420902 in words is "one hundred thirty-seven million, four hundred twenty thousand, nine hundred two".