145164554 has 8 divisors (see below), whose sum is σ = 220503360. Its totient is φ = 71663436.

The previous prime is 145164553. The next prime is 145164557. The reversal of 145164554 is 455461541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145164553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459224 + ... + 459539.

It is an arithmetic number, because the mean of its divisors is an integer number (27562920).

Almost surely, 2^145164554 is an apocalyptic number.

145164554 is a deficient number, since it is larger than the sum of its proper divisors (75338806).

145164554 is an equidigital number, since it uses as much as digits as its factorization.

145164554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918844.

The product of its digits is 48000, while the sum is 35.

The square root of 145164554 is about 12048.4253742968. The cubic root of 145164554 is about 525.5574474971.

The spelling of 145164554 in words is "one hundred forty-five million, one hundred sixty-four thousand, five hundred fifty-four".