145946873 has 2 divisors, whose sum is σ = 145946874. Its totient is φ = 145946872.

The previous prime is 145946869. The next prime is 145946881. The reversal of 145946873 is 378649541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145636624 + 310249 = 12068^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 145946873 - 2² = 145946869 is a prime.

It is not a weakly prime, because it can be changed into another prime (145946813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72973436 + 72973437.

It is an arithmetic number, because the mean of its divisors is an integer number (72973437).

Almost surely, 2^145946873 is an apocalyptic number.

It is an amenable number.

145946873 is a deficient number, since it is larger than the sum of its proper divisors (1).

145946873 is an equidigital number, since it uses as much as digits as its factorization.

145946873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 145946873 is about 12080.8473626646. The cubic root of 145946873 is about 526.4998657719.

It can be divided in two parts, 1459468 and 73, that added together give a palindrome (1459541).

The spelling of 145946873 in words is "one hundred forty-five million, nine hundred forty-six thousand, eight hundred seventy-three".