670263131 has 4 divisors (see below), whose sum is σ = 709690392. Its totient is φ = 630835872.

The previous prime is 670263119. The next prime is 670263137. The reversal of 670263131 is 131362076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670263131 - 2⁶ = 670263067 is a prime.

It is a super-2 number, since 2×670263131² = 898505329555846322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670263094 and 670263103.

It is not an unprimeable number, because it can be changed into a prime (670263137) 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, 19713605 + ... + 19713638.

It is an arithmetic number, because the mean of its divisors is an integer number (177422598).

Almost surely, 2^670263131 is an apocalyptic number.

670263131 is a deficient number, since it is larger than the sum of its proper divisors (39427261).

670263131 is a wasteful number, since it uses less digits than its factorization.

670263131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39427260.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 670263131 is about 25889.4405308419. The cubic root of 670263131 is about 875.1485488202.

The spelling of 670263131 in words is "six hundred seventy million, two hundred sixty-three thousand, one hundred thirty-one".