145404503254 has 16 divisors (see below), whose sum is σ = 222181444800. Its totient is φ = 71348221384.

The previous prime is 145404503197. The next prime is 145404503263. The reversal of 145404503254 is 452305404541.

It is a super-2 number, since 2×145404503254² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980344 + ... + 1118875.

It is an arithmetic number, because the mean of its divisors is an integer number (13886340300).

Almost surely, 2^145404503254 is an apocalyptic number.

145404503254 is a deficient number, since it is larger than the sum of its proper divisors (76776941546).

145404503254 is a wasteful number, since it uses less digits than its factorization.

145404503254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099867.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 145404503254 its reverse (452305404541), we get a palindrome (597709907795).

The spelling of 145404503254 in words is "one hundred forty-five billion, four hundred four million, five hundred three thousand, two hundred fifty-four".