70133437 has 4 divisors (see below), whose sum is σ = 76509216. Its totient is φ = 63757660.

The previous prime is 70133429. The next prime is 70133507. The reversal of 70133437 is 73433107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70133437 - 2³ = 70133429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70133137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3187873 + ... + 3187894.

It is an arithmetic number, because the mean of its divisors is an integer number (19127304).

Almost surely, 2^70133437 is an apocalyptic number.

It is an amenable number.

70133437 is a deficient number, since it is larger than the sum of its proper divisors (6375779).

70133437 is a wasteful number, since it uses less digits than its factorization.

70133437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375778.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 70133437 is about 8374.5708546767. The cubic root of 70133437 is about 412.3902361149.

The spelling of 70133437 in words is "seventy million, one hundred thirty-three thousand, four hundred thirty-seven".