145426917 has 16 divisors (see below), whose sum is σ = 200148480. Its totient is φ = 93877872.

The previous prime is 145426843. The next prime is 145426961. The reversal of 145426917 is 719624541.

It is not a de Polignac number, because 145426917 - 2¹¹ = 145424869 is a prime.

It is a super-2 number, since 2×145426917² = 42297976376249778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145426987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5728 + ... + 17990.

It is an arithmetic number, because the mean of its divisors is an integer number (12509280).

Almost surely, 2^145426917 is an apocalyptic number.

It is an amenable number.

145426917 is a deficient number, since it is larger than the sum of its proper divisors (54721563).

145426917 is a wasteful number, since it uses less digits than its factorization.

145426917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392.

The product of its digits is 60480, while the sum is 39.

The square root of 145426917 is about 12059.3083134979. The cubic root of 145426917 is about 525.8738788348.

The spelling of 145426917 in words is "one hundred forty-five million, four hundred twenty-six thousand, nine hundred seventeen".