145400547 has 8 divisors (see below), whose sum is σ = 193945680. Its totient is φ = 96894560.

The previous prime is 145400543. The next prime is 145400551. The reversal of 145400547 is 745004541.

It is an interprime number because it is at equal distance from previous prime (145400543) and next prime (145400551).

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

It is a cyclic number.

It is not a de Polignac number, because 145400547 - 2² = 145400543 is a prime.

It is a super-2 number, since 2×145400547² = 42282638135798418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145400543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397 + ... + 17057.

It is an arithmetic number, because the mean of its divisors is an integer number (24243210).

Almost surely, 2^145400547 is an apocalyptic number.

145400547 is a deficient number, since it is larger than the sum of its proper divisors (48545133).

145400547 is a wasteful number, since it uses less digits than its factorization.

145400547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19573.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 145400547 is about 12058.2149176402. The cubic root of 145400547 is about 525.8420916601.

The spelling of 145400547 in words is "one hundred forty-five million, four hundred thousand, five hundred forty-seven".