145501454 has 16 divisors (see below), whose sum is σ = 249980928. Its totient is φ = 62220312.

The previous prime is 145501429. The next prime is 145501459. The reversal of 145501454 is 454105541.

It is a super-2 number, since 2×145501454² = 42341346232228232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145501459) 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, 4742 + ... + 17705.

It is an arithmetic number, because the mean of its divisors is an integer number (15623808).

Almost surely, 2^145501454 is an apocalyptic number.

145501454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145501454 is a deficient number, since it is larger than the sum of its proper divisors (104479474).

145501454 is a wasteful number, since it uses less digits than its factorization.

145501454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22919.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 145501454 is about 12062.3983519033. The cubic root of 145501454 is about 525.9637071539.

Adding to 145501454 its reverse (454105541), we get a palindrome (599606995).

The spelling of 145501454 in words is "one hundred forty-five million, five hundred one thousand, four hundred fifty-four".