23490149 has 2 divisors, whose sum is σ = 23490150. Its totient is φ = 23490148.

The previous prime is 23490127. The next prime is 23490167. The reversal of 23490149 is 94109432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22372900 + 1117249 = 4730^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 23490149 - 2²⁴ = 6712933 is a prime.

It is a super-3 number, since 3×23490149³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_1477148 and since 23490149 and 1477148 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23490109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11745074 + 11745075.

It is an arithmetic number, because the mean of its divisors is an integer number (11745075).

Almost surely, 2^23490149 is an apocalyptic number.

It is an amenable number.

23490149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23490149 is an equidigital number, since it uses as much as digits as its factorization.

23490149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 23490149 is about 4846.6636978441. The cubic root of 23490149 is about 286.3926868198.

The spelling of 23490149 in words is "twenty-three million, four hundred ninety thousand, one hundred forty-nine".