137893019 has 8 divisors (see below), whose sum is σ = 150528000. Its totient is φ = 125274600.

The previous prime is 137893003. The next prime is 137893031. The reversal of 137893019 is 910398731.

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

It is not a de Polignac number, because 137893019 - 2⁴ = 137893003 is a prime.

It is a super-2 number, since 2×137893019² = 38028969377868722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137893039) 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 7 ways as a sum of consecutive naturals, for example, 18854 + ... + 25124.

It is an arithmetic number, because the mean of its divisors is an integer number (18816000).

Almost surely, 2^137893019 is an apocalyptic number.

137893019 is a deficient number, since it is larger than the sum of its proper divisors (12634981).

137893019 is a wasteful number, since it uses less digits than its factorization.

137893019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8281.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 137893019 is about 11742.7858279030. The cubic root of 137893019 is about 516.6313544140.

The spelling of 137893019 in words is "one hundred thirty-seven million, eight hundred ninety-three thousand, nineteen".