145455454 has 8 divisors (see below), whose sum is σ = 223504848. Its totient is φ = 70953840.

The previous prime is 145455433. The next prime is 145455461. The reversal of 145455454 is 454554541.

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

It is a super-2 number, since 2×145455454² = 42314578196692232, 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 3 ways as a sum of consecutive naturals, for example, 886842 + ... + 887005.

It is an arithmetic number, because the mean of its divisors is an integer number (27938106).

Almost surely, 2^145455454 is an apocalyptic number.

145455454 is a deficient number, since it is larger than the sum of its proper divisors (78049394).

145455454 is a wasteful number, since it uses less digits than its factorization.

145455454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773890.

The product of its digits is 160000, while the sum is 37.

The square root of 145455454 is about 12060.4914493564. The cubic root of 145455454 is about 525.9082738462.

The spelling of 145455454 in words is "one hundred forty-five million, four hundred fifty-five thousand, four hundred fifty-four".