145294254 has 96 divisors (see below), whose sum is σ = 382337280. Its totient is φ = 38952576.

The previous prime is 145294231. The next prime is 145294267. The reversal of 145294254 is 452492541.

It is a happy number.

It is a super-2 number, since 2×145294254² = 42220840490833032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327757 + ... + 328199.

It is an arithmetic number, because the mean of its divisors is an integer number (3982680).

Almost surely, 2^145294254 is an apocalyptic number.

145294254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145294254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191168640).

145294254 is an abundant number, since it is smaller than the sum of its proper divisors (237043026).

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

145294254 is a wasteful number, since it uses less digits than its factorization.

145294254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 611 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 145294254 is about 12053.8066186579. The cubic root of 145294254 is about 525.7139239648.

The spelling of 145294254 in words is "one hundred forty-five million, two hundred ninety-four thousand, two hundred fifty-four".