145055454 has 16 divisors (see below), whose sum is σ = 290991360. Its totient is φ = 48205080.

The previous prime is 145055431. The next prime is 145055473. The reversal of 145055454 is 454550541.

It is a super-2 number, since 2×145055454² = 42082169470292232, 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 7 ways as a sum of consecutive naturals, for example, 34534 + ... + 38505.

It is an arithmetic number, because the mean of its divisors is an integer number (18186960).

Almost surely, 2^145055454 is an apocalyptic number.

145055454 is an abundant number, since it is smaller than the sum of its proper divisors (145935906).

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

145055454 is a wasteful number, since it uses less digits than its factorization.

145055454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73375.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 145055454 is about 12043.8969607017. The cubic root of 145055454 is about 525.4257516931.

The spelling of 145055454 in words is "one hundred forty-five million, fifty-five thousand, four hundred fifty-four".