70145425 has 24 divisors (see below), whose sum is σ = 101051072. Its totient is φ = 47304000.

The previous prime is 70145407. The next prime is 70145429. The reversal of 70145425 is 52454107.

It is not a de Polignac number, because 70145425 - 2¹³ = 70137233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70145393 and 70145402.

It is not an unprimeable number, because it can be changed into a prime (70145429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7390 + ... + 13960.

Almost surely, 2^70145425 is an apocalyptic number.

It is an amenable number.

70145425 is a deficient number, since it is larger than the sum of its proper divisors (30905647).

70145425 is a wasteful number, since it uses less digits than its factorization.

70145425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649 (or 6644 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 70145425 is about 8375.2865622616. The cubic root of 70145425 is about 412.4137315768.

The spelling of 70145425 in words is "seventy million, one hundred forty-five thousand, four hundred twenty-five".