145450454 has 4 divisors (see below), whose sum is σ = 218175684. Its totient is φ = 72725226.

The previous prime is 145450451. The next prime is 145450463. The reversal of 145450454 is 454054541.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×145450454² = 42311669137612232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145450454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145450451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36362612 + ... + 36362615.

It is an arithmetic number, because the mean of its divisors is an integer number (54543921).

Almost surely, 2^145450454 is an apocalyptic number.

145450454 is a deficient number, since it is larger than the sum of its proper divisors (72725230).

145450454 is an equidigital number, since it uses as much as digits as its factorization.

145450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72725229.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 145450454 is about 12060.2841591730. The cubic root of 145450454 is about 525.9022477824.

The spelling of 145450454 in words is "one hundred forty-five million, four hundred fifty thousand, four hundred fifty-four".