145407454 has 8 divisors (see below), whose sum is σ = 218206800. Its totient is φ = 72671856.

The previous prime is 145407439. The next prime is 145407463. The reversal of 145407454 is 454704541.

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

It is a super-2 number, since 2×145407454² = 42286655357524232, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9754 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (27275850).

Almost surely, 2^145407454 is an apocalyptic number.

145407454 is a deficient number, since it is larger than the sum of its proper divisors (72799346).

145407454 is a wasteful number, since it uses less digits than its factorization.

145407454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31874.

The product of its (nonzero) digits is 44800, while the sum is 34.

The square root of 145407454 is about 12058.5013164987. The cubic root of 145407454 is about 525.8504179328.

The spelling of 145407454 in words is "one hundred forty-five million, four hundred seven thousand, four hundred fifty-four".