145397143 has 2 divisors, whose sum is σ = 145397144. Its totient is φ = 145397142.

The previous prime is 145397117. The next prime is 145397149. The reversal of 145397143 is 341793541.

145397143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145397143 - 2¹³ = 145388951 is a prime.

It is a super-2 number, since 2×145397143² = 42280658385124898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145397149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72698571 + 72698572.

It is an arithmetic number, because the mean of its divisors is an integer number (72698572).

Almost surely, 2^145397143 is an apocalyptic number.

145397143 is a deficient number, since it is larger than the sum of its proper divisors (1).

145397143 is an equidigital number, since it uses as much as digits as its factorization.

145397143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 145397143 is about 12058.0737682268. The cubic root of 145397143 is about 525.8379880982.

It can be divided in two parts, 1453 and 97143, that added together give a square (98596 = 314²).

The spelling of 145397143 in words is "one hundred forty-five million, three hundred ninety-seven thousand, one hundred forty-three".