137857550 has 12 divisors (see below), whose sum is σ = 256415136. Its totient is φ = 55143000.

The previous prime is 137857549. The next prime is 137857553. The reversal of 137857550 is 55758731.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 137857498 and 137857507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137857553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1378526 + ... + 1378625.

It is an arithmetic number, because the mean of its divisors is an integer number (21367928).

Almost surely, 2^137857550 is an apocalyptic number.

137857550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137857550 is a deficient number, since it is larger than the sum of its proper divisors (118557586).

137857550 is a wasteful number, since it uses less digits than its factorization.

137857550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757163 (or 2757158 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 41.

The square root of 137857550 is about 11741.2754843756. The cubic root of 137857550 is about 516.5870544462.

The spelling of 137857550 in words is "one hundred thirty-seven million, eight hundred fifty-seven thousand, five hundred fifty".