70251451 has 2 divisors, whose sum is σ = 70251452. Its totient is φ = 70251450.

The previous prime is 70251439. The next prime is 70251457. The reversal of 70251451 is 15415207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70251451 - 2¹³ = 70243259 is a prime.

It is not a weakly prime, because it can be changed into another prime (70251457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35125725 + 35125726.

It is an arithmetic number, because the mean of its divisors is an integer number (35125726).

Almost surely, 2^70251451 is an apocalyptic number.

70251451 is a deficient number, since it is larger than the sum of its proper divisors (1).

70251451 is an equidigital number, since it uses as much as digits as its factorization.

70251451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 70251451 is about 8381.6138660762. The cubic root of 70251451 is about 412.6214170894.

Adding to 70251451 its reverse (15415207), we get a palindrome (85666658).

The spelling of 70251451 in words is "seventy million, two hundred fifty-one thousand, four hundred fifty-one".