145169460 has 72 divisors (see below), whose sum is σ = 466259976. Its totient is φ = 36433920.

The previous prime is 145169459. The next prime is 145169461. The reversal of 145169460 is 64961541.

It is an interprime number because it is at equal distance from previous prime (145169459) and next prime (145169461).

It can be written as a sum of positive squares in 4 ways, for example, as 23155344 + 122014116 = 4812^2 + 11046^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145169461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20661 + ... + 26780.

It is an arithmetic number, because the mean of its divisors is an integer number (6475833).

Almost surely, 2^145169460 is an apocalyptic number.

145169460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145169460 is an abundant number, since it is smaller than the sum of its proper divisors (321090516).

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

145169460 is a wasteful number, since it uses less digits than its factorization.

145169460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47473 (or 47468 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 145169460 is about 12048.6289676461. The cubic root of 145169460 is about 525.5633680328.

The spelling of 145169460 in words is "one hundred forty-five million, one hundred sixty-nine thousand, four hundred sixty".