145753861 has 8 divisors (see below), whose sum is σ = 159282144. Its totient is φ = 132271920.

The previous prime is 145753859. The next prime is 145753879. The reversal of 145753861 is 168357541.

It is a happy number.

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

It is not a de Polignac number, because 145753861 - 2¹ = 145753859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145753891) 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, 4830 + ... + 17743.

It is an arithmetic number, because the mean of its divisors is an integer number (19910268).

Almost surely, 2^145753861 is an apocalyptic number.

145753861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145753861 is a deficient number, since it is larger than the sum of its proper divisors (13528283).

145753861 is a wasteful number, since it uses less digits than its factorization.

145753861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23171.

The product of its digits is 100800, while the sum is 40.

The square root of 145753861 is about 12072.8563728722. The cubic root of 145753861 is about 526.2676679861.

The spelling of 145753861 in words is "one hundred forty-five million, seven hundred fifty-three thousand, eight hundred sixty-one".