70749136 has 20 divisors (see below), whose sum is σ = 137482272. Its totient is φ = 35269856.

The previous prime is 70749131. The next prime is 70749139. The reversal of 70749136 is 63194707.

It is a junction number, because it is equal to n+sod(n) for n = 70749095 and 70749104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70749131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820 + ... + 11923.

Almost surely, 2^70749136 is an apocalyptic number.

It is an amenable number.

70749136 is a deficient number, since it is larger than the sum of its proper divisors (66733136).

70749136 is a wasteful number, since it uses less digits than its factorization.

70749136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098 (or 13092 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 70749136 is about 8411.2505610046. The cubic root of 70749136 is about 413.5935082979.

The spelling of 70749136 in words is "seventy million, seven hundred forty-nine thousand, one hundred thirty-six".