139741451 has 2 divisors, whose sum is σ = 139741452. Its totient is φ = 139741450.

The previous prime is 139741429. The next prime is 139741463. The reversal of 139741451 is 154147931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139741451 - 2²⁶ = 72632587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (139741471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69870725 + 69870726.

It is an arithmetic number, because the mean of its divisors is an integer number (69870726).

Almost surely, 2^139741451 is an apocalyptic number.

139741451 is a deficient number, since it is larger than the sum of its proper divisors (1).

139741451 is an equidigital number, since it uses as much as digits as its factorization.

139741451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 139741451 is about 11821.2288278334. The cubic root of 139741451 is about 518.9295669831.

The spelling of 139741451 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, four hundred fifty-one".