145401453 has 16 divisors (see below), whose sum is σ = 221232960. Its totient is φ = 94313808.

The previous prime is 145401413. The next prime is 145401461. The reversal of 145401453 is 354104541.

It is a happy number.

145401453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145401453 - 2⁸ = 145401197 is a prime.

It is a super-2 number, since 2×145401453² = 42283165069022418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145401413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71775 + ... + 73772.

It is an arithmetic number, because the mean of its divisors is an integer number (13827060).

Almost surely, 2^145401453 is an apocalyptic number.

It is an amenable number.

145401453 is a deficient number, since it is larger than the sum of its proper divisors (75831507).

145401453 is a wasteful number, since it uses less digits than its factorization.

145401453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145593 (or 145587 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 145401453 is about 12058.2524853314. The cubic root of 145401453 is about 525.8431838429.

Adding to 145401453 its reverse (354104541), we get a palindrome (499505994).

The spelling of 145401453 in words is "one hundred forty-five million, four hundred one thousand, four hundred fifty-three".