145736939 has 2 divisors, whose sum is σ = 145736940. Its totient is φ = 145736938.

The previous prime is 145736923. The next prime is 145736953. The reversal of 145736939 is 939637541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145736939 - 2⁴ = 145736923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 145736893 and 145736902.

It is not a weakly prime, because it can be changed into another prime (145736639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72868469 + 72868470.

It is an arithmetic number, because the mean of its divisors is an integer number (72868470).

Almost surely, 2^145736939 is an apocalyptic number.

145736939 is a deficient number, since it is larger than the sum of its proper divisors (1).

145736939 is an equidigital number, since it uses as much as digits as its factorization.

145736939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 47.

The square root of 145736939 is about 12072.1555241804. The cubic root of 145736939 is about 526.2473006671.

It can be divided in two parts, 14573 and 6939, that added together give a palindrome (21512).

The spelling of 145736939 in words is "one hundred forty-five million, seven hundred thirty-six thousand, nine hundred thirty-nine".