145451454 has 16 divisors (see below), whose sum is σ = 294172560. Its totient is φ = 47938880.

The previous prime is 145451437. The next prime is 145451459. The reversal of 145451454 is 454154541.

It is a super-2 number, since 2×145451454² = 42312250941428232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145451459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135657 + ... + 136724.

It is an arithmetic number, because the mean of its divisors is an integer number (18385785).

Almost surely, 2^145451454 is an apocalyptic number.

145451454 is an abundant number, since it is smaller than the sum of its proper divisors (148721106).

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

145451454 is a wasteful number, since it uses less digits than its factorization.

145451454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272475.

The product of its digits is 32000, while the sum is 33.

The square root of 145451454 is about 12060.3256174947. The cubic root of 145451454 is about 525.9034530062.

The spelling of 145451454 in words is "one hundred forty-five million, four hundred fifty-one thousand, four hundred fifty-four".