40290149 has 2 divisors, whose sum is σ = 40290150. Its totient is φ = 40290148.

The previous prime is 40290083. The next prime is 40290163. The reversal of 40290149 is 94109204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 9042049 = 5590^2 + 3007^2 .

It is a cyclic number.

It is not a de Polignac number, because 40290149 - 2¹² = 40286053 is a prime.

It is a super-2 number, since 2×40290149² = 3246592212884402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40290169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20145074 + 20145075.

It is an arithmetic number, because the mean of its divisors is an integer number (20145075).

Almost surely, 2^40290149 is an apocalyptic number.

It is an amenable number.

40290149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40290149 is an equidigital number, since it uses as much as digits as its factorization.

40290149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 40290149 is about 6347.4521660269. The cubic root of 40290149 is about 342.8201109722.

The spelling of 40290149 in words is "forty million, two hundred ninety thousand, one hundred forty-nine".