143370749 has 2 divisors, whose sum is σ = 143370750. Its totient is φ = 143370748.

The previous prime is 143370743. The next prime is 143370761. The reversal of 143370749 is 947073341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139665124 + 3705625 = 11818^2 + 1925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143370749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143370743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71685374 + 71685375.

It is an arithmetic number, because the mean of its divisors is an integer number (71685375).

Almost surely, 2^143370749 is an apocalyptic number.

It is an amenable number.

143370749 is a deficient number, since it is larger than the sum of its proper divisors (1).

143370749 is an equidigital number, since it uses as much as digits as its factorization.

143370749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 143370749 is about 11973.7525028706. The cubic root of 143370749 is about 523.3836899178.

The spelling of 143370749 in words is "one hundred forty-three million, three hundred seventy thousand, seven hundred forty-nine".