145878707 has 4 divisors (see below), whose sum is σ = 157100160. Its totient is φ = 134657256.

The previous prime is 145878703. The next prime is 145878709. The reversal of 145878707 is 707878541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707878541 = 19121 ⋅37021.

It is a cyclic number.

It is not a de Polignac number, because 145878707 - 2² = 145878703 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145878703) 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, 5610707 + ... + 5610732.

It is an arithmetic number, because the mean of its divisors is an integer number (39275040).

Almost surely, 2^145878707 is an apocalyptic number.

145878707 is a deficient number, since it is larger than the sum of its proper divisors (11221453).

145878707 is a wasteful number, since it uses less digits than its factorization.

145878707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221452.

The product of its (nonzero) digits is 439040, while the sum is 47.

The square root of 145878707 is about 12078.0257906663. The cubic root of 145878707 is about 526.4178839336.

The spelling of 145878707 in words is "one hundred forty-five million, eight hundred seventy-eight thousand, seven hundred seven".