45140949 has 16 divisors (see below), whose sum is σ = 76429440. Its totient is φ = 25794720.

The previous prime is 45140923. The next prime is 45140969. The reversal of 45140949 is 94904154.

It is a happy number.

It is not a de Polignac number, because 45140949 - 2⁹ = 45140437 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45140969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119232 + ... + 119609.

It is an arithmetic number, because the mean of its divisors is an integer number (4776840).

Almost surely, 2^45140949 is an apocalyptic number.

It is an amenable number.

45140949 is a deficient number, since it is larger than the sum of its proper divisors (31288491).

45140949 is a wasteful number, since it uses less digits than its factorization.

45140949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238857 (or 238851 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 45140949 is about 6718.7014370338. The cubic root of 45140949 is about 356.0603067678.

The spelling of 45140949 in words is "forty-five million, one hundred forty thousand, nine hundred forty-nine".