137992145 has 8 divisors (see below), whose sum is σ = 175331304. Its totient is φ = 103899904.

The previous prime is 137992139. The next prime is 137992163. The reversal of 137992145 is 541299731.

137992145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 77510416 + 60481729 = 8804^2 + 7777^2 .

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 137992145 - 2⁶ = 137992081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811634 + ... + 811803.

It is an arithmetic number, because the mean of its divisors is an integer number (21916413).

Almost surely, 2^137992145 is an apocalyptic number.

It is an amenable number.

137992145 is a deficient number, since it is larger than the sum of its proper divisors (37339159).

137992145 is a wasteful number, since it uses less digits than its factorization.

137992145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623459.

The product of its digits is 68040, while the sum is 41.

The square root of 137992145 is about 11747.0057887106. The cubic root of 137992145 is about 516.7551202472.

The spelling of 137992145 in words is "one hundred thirty-seven million, nine hundred ninety-two thousand, one hundred forty-five".