145291104 has 96 divisors (see below), whose sum is σ = 484323840. Its totient is φ = 41510016.

The previous prime is 145291067. The next prime is 145291117. The reversal of 145291104 is 401192541.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×145291104² = 42219009803077632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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, 5964 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (5045040).

Almost surely, 2^145291104 is an apocalyptic number.

145291104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145291104 is an abundant number, since it is smaller than the sum of its proper divisors (339032736).

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

145291104 is a wasteful number, since it uses less digits than its factorization.

145291104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24049 (or 24035 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 145291104 is about 12053.6759538325. The cubic root of 145291104 is about 525.7101247533.

The spelling of 145291104 in words is "one hundred forty-five million, two hundred ninety-one thousand, one hundred four".