145332254 has 16 divisors (see below), whose sum is σ = 233804880. Its totient is φ = 67541760.

The previous prime is 145332241. The next prime is 145332277. The reversal of 145332254 is 452233541.

It is a happy number.

It is a super-2 number, since 2×145332254² = 42242928105441032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34067 + ... + 38094.

It is an arithmetic number, because the mean of its divisors is an integer number (14612805).

Almost surely, 2^145332254 is an apocalyptic number.

145332254 is a deficient number, since it is larger than the sum of its proper divisors (88472626).

145332254 is a wasteful number, since it uses less digits than its factorization.

145332254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72235.

The product of its digits is 14400, while the sum is 29.

The square root of 145332254 is about 12055.3827811480. The cubic root of 145332254 is about 525.7597513971.

Adding to 145332254 its reverse (452233541), we get a palindrome (597565795).

The spelling of 145332254 in words is "one hundred forty-five million, three hundred thirty-two thousand, two hundred fifty-four".