137849553 has 16 divisors (see below), whose sum is σ = 207100800. Its totient is φ = 90604080.

The previous prime is 137849507. The next prime is 137849563. The reversal of 137849553 is 355948731.

137849553 is a `hidden beast` number, since 13 + 7 + 84 + 9 + 553 = 666.

137849553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137849553 - 2¹² = 137845457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137849499 and 137849508.

It is not an unprimeable number, because it can be changed into a prime (137849563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34038 + ... + 37871.

It is an arithmetic number, because the mean of its divisors is an integer number (12943800).

Almost surely, 2^137849553 is an apocalyptic number.

It is an amenable number.

137849553 is a deficient number, since it is larger than the sum of its proper divisors (69251247).

137849553 is an equidigital number, since it uses as much as digits as its factorization.

137849553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71989 (or 71983 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 137849553 is about 11740.9349287014. The cubic root of 137849553 is about 516.5770653269.

The spelling of 137849553 in words is "one hundred thirty-seven million, eight hundred forty-nine thousand, five hundred fifty-three".