535157989 has 2 divisors, whose sum is σ = 535157990. Its totient is φ = 535157988.

The previous prime is 535157897. The next prime is 535157993. The reversal of 535157989 is 989751535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311804964 + 223353025 = 17658^2 + 14945^2 .

It is a cyclic number.

It is not a de Polignac number, because 535157989 - 2²¹ = 533060837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (535157999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267578994 + 267578995.

It is an arithmetic number, because the mean of its divisors is an integer number (267578995).

Almost surely, 2^535157989 is an apocalyptic number.

It is an amenable number.

535157989 is a deficient number, since it is larger than the sum of its proper divisors (1).

535157989 is an equidigital number, since it uses as much as digits as its factorization.

535157989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1701000, while the sum is 52.

The square root of 535157989 is about 23133.4819903965. The cubic root of 535157989 is about 811.8840404228.

It can be divided in two parts, 53515 and 7989, that added together give a square (61504 = 248²).

The spelling of 535157989 in words is "five hundred thirty-five million, one hundred fifty-seven thousand, nine hundred eighty-nine".