40694501 has 2 divisors, whose sum is σ = 40694502. Its totient is φ = 40694500.

The previous prime is 40694471. The next prime is 40694531. The reversal of 40694501 is 10549604.

It is a balanced prime because it is at equal distance from previous prime (40694471) and next prime (40694531).

It can be written as a sum of positive squares in only one way, i.e., 27196225 + 13498276 = 5215^2 + 3674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40694501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40694531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20347250 + 20347251.

It is an arithmetic number, because the mean of its divisors is an integer number (20347251).

Almost surely, 2^40694501 is an apocalyptic number.

It is an amenable number.

40694501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40694501 is an equidigital number, since it uses as much as digits as its factorization.

40694501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 40694501 is about 6379.2241691290. The cubic root of 40694501 is about 343.9631433606.

The spelling of 40694501 in words is "forty million, six hundred ninety-four thousand, five hundred one".