130921070 has 32 divisors (see below), whose sum is σ = 270563328. Its totient is φ = 44680608.

The previous prime is 130921061. The next prime is 130921073. The reversal of 130921070 is 70129031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130921073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11417 + ... + 19803.

It is an arithmetic number, because the mean of its divisors is an integer number (8455104).

Almost surely, 2^130921070 is an apocalyptic number.

130921070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130921070 is an abundant number, since it is smaller than the sum of its proper divisors (139642258).

130921070 is a wasteful number, since it uses less digits than its factorization.

130921070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8624.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 130921070 is about 11442.0745496610. The cubic root of 130921070 is about 507.7732857987.

The spelling of 130921070 in words is "one hundred thirty million, nine hundred twenty-one thousand, seventy".