145091628 has 48 divisors (see below), whose sum is σ = 410363520. Its totient is φ = 43966800.

The previous prime is 145091623. The next prime is 145091633. The reversal of 145091628 is 826190541.

It is an interprime number because it is at equal distance from previous prime (145091623) and next prime (145091633).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 145091592 and 145091601.

It is not an unprimeable number, because it can be changed into a prime (145091621) 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, 59878 + ... + 62253.

It is an arithmetic number, because the mean of its divisors is an integer number (8549240).

Almost surely, 2^145091628 is an apocalyptic number.

145091628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145091628 is an abundant number, since it is smaller than the sum of its proper divisors (265271892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145091628 is a wasteful number, since it uses less digits than its factorization.

145091628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122155 (or 122147 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 145091628 is about 12045.3986235409. The cubic root of 145091628 is about 525.4694250398.

The spelling of 145091628 in words is "one hundred forty-five million, ninety-one thousand, six hundred twenty-eight".