145877397 has 8 divisors (see below), whose sum is σ = 196846944. Its totient is φ = 96079728.

The previous prime is 145877387. The next prime is 145877401. The reversal of 145877397 is 793778541.

145877397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145877397 - 2¹⁴ = 145861013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145877317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292678 + ... + 293175.

It is an arithmetic number, because the mean of its divisors is an integer number (24605868).

Almost surely, 2^145877397 is an apocalyptic number.

It is an amenable number.

145877397 is a deficient number, since it is larger than the sum of its proper divisors (50969547).

145877397 is an equidigital number, since it uses as much as digits as its factorization.

145877397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585939.

The product of its digits is 1481760, while the sum is 51.

The square root of 145877397 is about 12077.9715598274. The cubic root of 145877397 is about 526.4163081736.

The spelling of 145877397 in words is "one hundred forty-five million, eight hundred seventy-seven thousand, three hundred ninety-seven".