137249481 has 16 divisors (see below), whose sum is σ = 185734080. Its totient is φ = 90140160.

The previous prime is 137249473. The next prime is 137249513. The reversal of 137249481 is 184942731.

It is not a de Polignac number, because 137249481 - 2³ = 137249473 is a prime.

It is a super-2 number, since 2×137249481² = 37674840069538722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137249401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87601 + ... + 89153.

It is an arithmetic number, because the mean of its divisors is an integer number (11608380).

Almost surely, 2^137249481 is an apocalyptic number.

It is an amenable number.

137249481 is a deficient number, since it is larger than the sum of its proper divisors (48484599).

137249481 is a wasteful number, since it uses less digits than its factorization.

137249481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its digits is 48384, while the sum is 39.

The square root of 137249481 is about 11715.3523634588. The cubic root of 137249481 is about 515.8264056099.

The spelling of 137249481 in words is "one hundred thirty-seven million, two hundred forty-nine thousand, four hundred eighty-one".