39145461 has 4 divisors (see below), whose sum is σ = 52193952. Its totient is φ = 26096972.

The previous prime is 39145451. The next prime is 39145481. The reversal of 39145461 is 16454193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39145461 - 2⁶ = 39145397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39145451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6524241 + ... + 6524246.

It is an arithmetic number, because the mean of its divisors is an integer number (13048488).

Almost surely, 2^39145461 is an apocalyptic number.

It is an amenable number.

39145461 is a deficient number, since it is larger than the sum of its proper divisors (13048491).

39145461 is a wasteful number, since it uses less digits than its factorization.

39145461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13048490.

The product of its digits is 12960, while the sum is 33.

The square root of 39145461 is about 6256.6333598829. The cubic root of 39145461 is about 339.5422357464.

The spelling of 39145461 in words is "thirty-nine million, one hundred forty-five thousand, four hundred sixty-one".