72374101 has 2 divisors, whose sum is σ = 72374102. Its totient is φ = 72374100.

The previous prime is 72374087. The next prime is 72374129. The reversal of 72374101 is 10147327.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41293476 + 31080625 = 6426^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 72374101 - 2⁵ = 72374069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72374131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36187050 + 36187051.

It is an arithmetic number, because the mean of its divisors is an integer number (36187051).

Almost surely, 2^72374101 is an apocalyptic number.

It is an amenable number.

72374101 is a deficient number, since it is larger than the sum of its proper divisors (1).

72374101 is an equidigital number, since it uses as much as digits as its factorization.

72374101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 72374101 is about 8507.2969267565. The cubic root of 72374101 is about 416.7360401467.

The spelling of 72374101 in words is "seventy-two million, three hundred seventy-four thousand, one hundred one".