130649945 has 8 divisors (see below), whose sum is σ = 157719744. Its totient is φ = 103893424.

The previous prime is 130649927. The next prime is 130649951. The reversal of 130649945 is 549946031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130649945 - 2¹² = 130645849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77399 + ... + 79068.

It is an arithmetic number, because the mean of its divisors is an integer number (19714968).

Almost surely, 2^130649945 is an apocalyptic number.

It is an amenable number.

130649945 is a deficient number, since it is larger than the sum of its proper divisors (27069799).

130649945 is a wasteful number, since it uses less digits than its factorization.

130649945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156639.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 130649945 is about 11430.2206890331. The cubic root of 130649945 is about 507.4225269397.

The spelling of 130649945 in words is "one hundred thirty million, six hundred forty-nine thousand, nine hundred forty-five".