70370051 has 2 divisors, whose sum is σ = 70370052. Its totient is φ = 70370050.

The previous prime is 70370023. The next prime is 70370057. The reversal of 70370051 is 15007307.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70370051 - 2¹⁸ = 70107907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70369999 and 70370026.

It is not a weakly prime, because it can be changed into another prime (70370057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35185025 + 35185026.

It is an arithmetic number, because the mean of its divisors is an integer number (35185026).

Almost surely, 2^70370051 is an apocalyptic number.

70370051 is a deficient number, since it is larger than the sum of its proper divisors (1).

70370051 is an equidigital number, since it uses as much as digits as its factorization.

70370051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 70370051 is about 8388.6858923195. The cubic root of 70370051 is about 412.8534853072.

Adding to 70370051 its reverse (15007307), we get a palindrome (85377358).

The spelling of 70370051 in words is "seventy million, three hundred seventy thousand, fifty-one".