1554140145 has 8 divisors (see below), whose sum is σ = 2486624256. Its totient is φ = 828874736.

The previous prime is 1554140101. The next prime is 1554140149. The reversal of 1554140145 is 5410414551.

1554140145 is digitally balanced in base 4, 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 a cyclic number.

It is not a de Polignac number, because 1554140145 - 2⁹ = 1554139633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1554140149) 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, 51804657 + ... + 51804686.

It is an arithmetic number, because the mean of its divisors is an integer number (310828032).

Almost surely, 2^1554140145 is an apocalyptic number.

1554140145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1554140145 is a deficient number, since it is larger than the sum of its proper divisors (932484111).

1554140145 is a wasteful number, since it uses less digits than its factorization.

1554140145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103609351.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 1554140145 is about 39422.5841999228. The cubic root of 1554140145 is about 1158.3240127378.

Adding to 1554140145 its reverse (5410414551), we get a palindrome (6964554696).

The spelling of 1554140145 in words is "one billion, five hundred fifty-four million, one hundred forty thousand, one hundred forty-five".