31754949 has 4 divisors (see below), whose sum is σ = 42339936. Its totient is φ = 21169964.

The previous prime is 31754923. The next prime is 31754959. The reversal of 31754949 is 94945713.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94945713 = 3 ⋅31648571.

It is a cyclic number.

It is not a de Polignac number, because 31754949 - 2⁸ = 31754693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31754949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31754959) 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, 5292489 + ... + 5292494.

It is an arithmetic number, because the mean of its divisors is an integer number (10584984).

Almost surely, 2^31754949 is an apocalyptic number.

It is an amenable number.

31754949 is a deficient number, since it is larger than the sum of its proper divisors (10584987).

31754949 is a wasteful number, since it uses less digits than its factorization.

31754949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10584986.

The product of its digits is 136080, while the sum is 42.

The square root of 31754949 is about 5635.1529704170. The cubic root of 31754949 is about 316.6677282821.

The spelling of 31754949 in words is "thirty-one million, seven hundred fifty-four thousand, nine hundred forty-nine".