101432257 has 2 divisors, whose sum is σ = 101432258. Its totient is φ = 101432256.

The previous prime is 101432249. The next prime is 101432263. The reversal of 101432257 is 752234101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 46908801 = 7384^2 + 6849^2 .

It is an emirp because it is prime and its reverse (752234101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101432257 - 2³ = 101432249 is a prime.

It is a super-2 number, since 2×101432257² = 20577005520228098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101432297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50716128 + 50716129.

It is an arithmetic number, because the mean of its divisors is an integer number (50716129).

Almost surely, 2^101432257 is an apocalyptic number.

It is an amenable number.

101432257 is a deficient number, since it is larger than the sum of its proper divisors (1).

101432257 is an equidigital number, since it uses as much as digits as its factorization.

101432257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 101432257 is about 10071.3582500078. The cubic root of 101432257 is about 466.3643699238.

Adding to 101432257 its reverse (752234101), we get a palindrome (853666358).

The spelling of 101432257 in words is "one hundred one million, four hundred thirty-two thousand, two hundred fifty-seven".