137981016 has 32 divisors (see below), whose sum is σ = 383281200. Its totient is φ = 45993600.

The previous prime is 137981009. The next prime is 137981017. The reversal of 137981016 is 610189731.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137981017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319185 + ... + 319616.

Almost surely, 2^137981016 is an apocalyptic number.

It is an amenable number.

137981016 is an abundant number, since it is smaller than the sum of its proper divisors (245300184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137981016 is a wasteful number, since it uses less digits than its factorization.

137981016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638816 (or 638806 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 137981016 is about 11746.5320839812. The cubic root of 137981016 is about 516.7412278566.

The spelling of 137981016 in words is "one hundred thirty-seven million, nine hundred eighty-one thousand, sixteen".