42137045 has 6 divisors (see below), whose sum is σ = 50581878. Its totient is φ = 33698024.

The previous prime is 42137027. The next prime is 42137059. The reversal of 42137045 is 54073124.

It can be written as a sum of positive squares in only one way, i.e., 33709636 + 8427409 = 5806^2 + 2903^2 .

It is not a de Polignac number, because 42137045 - 2⁸ = 42136789 is a prime.

It is a super-2 number, since 2×42137045² = 3551061122664050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13064 + ... + 15966.

It is an arithmetic number, because the mean of its divisors is an integer number (8430313).

Almost surely, 2^42137045 is an apocalyptic number.

It is an amenable number.

42137045 is a deficient number, since it is larger than the sum of its proper divisors (8444833).

42137045 is an frugal number, since it uses more digits than its factorization.

42137045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 42137045 is about 6491.3053386819. The cubic root of 42137045 is about 347.9803270906.

The spelling of 42137045 in words is "forty-two million, one hundred thirty-seven thousand, forty-five".