145426625 has 16 divisors (see below), whose sum is σ = 182178048. Its totient is φ = 115902000.

The previous prime is 145426609. The next prime is 145426643. The reversal of 145426625 is 526624541.

It is not a de Polignac number, because 145426625 - 2⁴ = 145426609 is a prime.

It is a super-2 number, since 2×145426625² = 42297806517781250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33320 + ... + 37430.

It is an arithmetic number, because the mean of its divisors is an integer number (11386128).

Almost surely, 2^145426625 is an apocalyptic number.

It is an amenable number.

145426625 is a deficient number, since it is larger than the sum of its proper divisors (36751423).

145426625 is an equidigital number, since it uses as much as digits as its factorization.

145426625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409 (or 4399 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 145426625 is about 12059.2962066615. The cubic root of 145426625 is about 525.8735268704.

The spelling of 145426625 in words is "one hundred forty-five million, four hundred twenty-six thousand, six hundred twenty-five".