137473019 has 8 divisors (see below), whose sum is σ = 142590288. Its totient is φ = 132429600.

The previous prime is 137473013. The next prime is 137473031. The reversal of 137473019 is 910374731.

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

It is a cyclic number.

It is not a de Polignac number, because 137473019 - 2¹² = 137468923 is a prime.

It is a super-2 number, since 2×137473019² = 37797661905948722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137473019.

It is not an unprimeable number, because it can be changed into a prime (137473013) 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, 14657 + ... + 22130.

It is an arithmetic number, because the mean of its divisors is an integer number (17823786).

Almost surely, 2^137473019 is an apocalyptic number.

137473019 is a deficient number, since it is larger than the sum of its proper divisors (5117269).

137473019 is a wasteful number, since it uses less digits than its factorization.

137473019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36925.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 137473019 is about 11724.8888694094. Note that the first 4 decimals coincide. The cubic root of 137473019 is about 516.1062955806.

The spelling of 137473019 in words is "one hundred thirty-seven million, four hundred seventy-three thousand, nineteen".