145214837 has 2 divisors, whose sum is σ = 145214838. Its totient is φ = 145214836.

The previous prime is 145214813. The next prime is 145214843. The reversal of 145214837 is 738412541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103042801 + 42172036 = 10151^2 + 6494^2 .

It is a cyclic number.

It is not a de Polignac number, because 145214837 - 2¹⁴ = 145198453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145214797 and 145214806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145214897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72607418 + 72607419.

It is an arithmetic number, because the mean of its divisors is an integer number (72607419).

Almost surely, 2^145214837 is an apocalyptic number.

It is an amenable number.

145214837 is a deficient number, since it is larger than the sum of its proper divisors (1).

145214837 is an equidigital number, since it uses as much as digits as its factorization.

145214837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 145214837 is about 12050.5118978407. The cubic root of 145214837 is about 525.6181224431.

The spelling of 145214837 in words is "one hundred forty-five million, two hundred fourteen thousand, eight hundred thirty-seven".